Classifications

• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
  • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
  • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
  • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
  • D21H21/48—Elements suited for physical verification, e.g. by irradiation
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
  • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
  • G07D7/004—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
  • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
  • G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07F—COIN-FREED OR LIKE APPARATUS
  • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
  • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
  • G07F7/086—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H19/00—Coated paper; Coating material
  • D21H19/02—Metal coatings
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
  • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
  • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
  • D21H21/42—Ribbons or strips

Definitions

• the present invention relates to an information medium allowing the recording and storage of static and dynamic information relating to the traceability of a product.
• This medium is made of plastic and comprises magnetic particles, it is in particular in the form of a label. or a plastic packaging sheet
• the present invention also relates to a method of manufacturing said support as well as a method for reading the information recorded and stored. The information is recorded magnetically using inductive heads but their reading is done. by reading machines equipped with magneto-resistive sensors as will be explained below
• Traceability is a legal obligation in the case of certain products such as cars and their spare parts, for products subject to approval, drugs subject to authorization to market or certain food products More generally, according to the directive of June 29, 1992 relating to product safety, all stored warehouses must be able to provide proof of compliance of the products with general regulations
• traceability is defined as "the ability to find the history, use or location of a entity by means of identifications"
• ISO 9000-2 standard of July 1994 relating to the application of standards for quality management and quality assurance which incorporates the content of ISO 9000-2 1993 where are specified on page 10, point 4 8 of the recommendations on the identification and traceability of a product Traceability applies to the monitoring of a group of same items, bearing the same batch number as a reference, called statistical identification, or to individually identified objects, then called registration, or to a sequential identification of identified operations or operators
• two-dimensional (2D) barcodes appeared, which are formed by a stack of several linear barcodes appearing in the form of a checkerboard and, more recently, are appeared the matrix codes which are no longer in the form of bars, but light and dark dots or squares They require specific decoding software which does not allow very fast data processing
• Another disadvantage is to be an information medium with permanent memory and therefore not to be with evolving memory. Indeed, part of the information can be fixed (called information static) such as the date and place of manufacture, the raw materials entering the production, batch number, while another part of the information can vary and be individualized (so-called dynamic information) depending on the circulation of the product
• Another drawback is their lack of aesthetics, which can be particularly annoying when they are worn on luxury packaging or on containers (bottle bottles), in particular with shapes and / or patterns researched.
• the electronic chip is incorporated into a label or directly into the product Although it has the possibility of storing static and dynamic information at the same time it has the disadvantage of being too large (about 2 mm 2 ) to be discreetly incorporated into a label or packaging or the product itself, it is all the thicker when it is activated, that is to say say when it is implemented with an induction winding which provides it with 1 operating energy and p ⁇ se in resin Its lack of flexibility limits its incorporation in ⁇ gide supports Furthermore, its cost price is high The chip can be easily located, by visual identification or by touch It is not tamper-proof, it can be removed and replaced by another
• the problem is therefore to provide an information medium allowing the traceability of a product and / or process, which is invisible and difficult to locate without knowing its location in advance and which presents an important and evolving memory, that is to say that is to say, to record and store a large amount of information and some being static and other dynamic
• this support must be compatible at least with one of the known anti-theft systems such as electromagnetic devices (magnetic tab or fine alloy), electronic circuits detectable remotely by a radio frequency or magnetoacoustic devices (vibrate). and emit a frequency of 58kHz), that is to say it must not disturb the detection, activation and deactivation of these various devices
• Another prop ⁇ ete sought in addition to traceability is to be able to highlight an attempt to alter a product, for example, when replacing a given product with another in a bottle, bottle or box
• Another secondary property sought in addition to traceability is compatibility with known means of authentication (so-called security elements) in the field of security documents, such as in particular optically variable devices (holograms, identity, diffraction grids, moiré). , thermochromic effect)
• An object of the present invention is therefore to provide an information medium allowing the traceability of a product which solves the problems of the means of the prior art and can moreover exhibit the secondary properties sought after set forth above.
• Another object of the present invention is to be able to encode information in increased quantity compared to bar codes.
• Another object and advantages of the present invention will appear in the description of the embodiments of the invention below.
• the present invention provides an information medium allowing 1 recording and storage of static and dynamic information characterized in that it comprises a substrate consisting of a plastic sheet and at least one area comprising magnetic particles and such as a) said magnetic particles are comprised in the mass of the substrate or in a coating on the surface of the substrate, b) said magnetic particles do not affect the appearance characteristics of said area, and c) said magnetic particles are distributed uniformly in said zoned
• coating on the surface of the substrate is meant that it is a coating which is not necessarily at least partially covered by a masking layer, said coating being able to be present on the external surface of the substrate or be under or between other layers which do not mask it at least in part
• characteristic b) according to which “the magnetic particles do not affect the appearance characteristics of the said zone” means that it is not necessary to mask said area to make it invisible and more particularly means that when they are compacted in the mass of the substrate, or even when they are included in a coating on the surface of the substrate, the particles are not distinguished as such and the aspect, in particular the luminosity (L *) and / or the colo ⁇ met ⁇ ques coordinates (L *, a *, b *) in the CIELAB system, and / or the transparency or 1 opacity of the substrate, is not or very little modification
• the luminosity L * is greater than 70 and preferably 80.
• Known charges providing whiteness such as for example titanium dioxide or calcium carbonate can be added to improve the whiteness, in particular at levels of between 2 and 10%, in the case of white substrates
• said support has a thickness comp ⁇ se between 1 and 2000 ⁇ m, preferably between 1 and 800 ⁇ m and more preferably between 10 and 600 ⁇ m
• the present invention is particularly advantageous when said support is a label or a packaging sheet or a packaging film.
• the invention makes it possible to associate in the same area magnetic properties and an authentication element such as those known in the field of security documents in particular with visual effect, like certain safety wires, devices with variable optical effect such as diffraction gratings holograms moiré patterns prints or bands with a downward effect prints based on thermochromic inks or others
• visual effect or readability does not is not obscured by the presence of magnetic particles
• the magnetic particles can therefore be associated with authentication elements (also called security elements)
• anti-theft devices can coexist with the presence of magnetic particles
• Said support with said particles can also make it possible to record and store information, in much larger quantities than previously, in particular in the form of magnetic codes, and make the area where magnetic information has been recorded and stored invisible to the naked eye and invisible to the magnetic magnifier II also allows recording and reading additional information to the initial information to follow the traceability of a product
• magneto-resistive sensors having a sensitivity very superior to the inductive heads used antenantement
• Such a support is therefore inviolable because the areas containing the information cannot be easily identified
• the magnetic particles do not form agglomerates or aggregates inhomogenes It is therefore necessary that magnetic particles are well individualized and uniformly dispersed and distributed in their substrate.
• uniform distribution of magnetic particles is meant that the volume density of particles in said zone, and therefore the magnetic magnetization. at saturation or remanent in said zone are substantially constant so that there is no or little background noise This characteristic is necessary to enable a code message recorded in said zone to be read reliably
• a secondary aim of the present invention is therefore to confer on a support, 1 aptitude to be magnetized records, detects and reads by machine thanks to its magnetic properties, without it being necessary to mask the magnetic zones to make them invisible and in particular to be able to introduce magnetic particles homogeneously and without aggregates on the surface or in the mass of a substrate over a large area
• the magnetic particles can therefore advantageously be incorporated into the mass of the substrate by mixing a dispersion of said particles with the base mixture to fabricate the substrate or the coating of said information medium. This therefore gives good individualization of the particles, which makes it possible to prevent a reaggiomeration of said particles when incorporated into the manufacturing medium of said substrate or of said coating
• the magnetic particles are then in the form of pigments which can be coated with a layer, even a discrete one (that is to say non-continuous) coming from the dispersing medium
• Said area comprising said particles may cover the entire substrate or only a part
• the magnetic particles in the mass of the substrate or in a coating on the surface of the substrate in an area covering the entire substrate makes it possible to considerably extend the possibilities of use of the present invention. However, they may only be so in a localized zone, in particular in the form of a band in particular of width from 1 to 5 cm by methods known to those skilled in the art, said zone not necessarily covering the entire substrate
• the present invention is particularly advantageous when the substrate comprising said magnetic particles is a transparent to translucent plastic substrate and / or has a clear color, in particular white, cream or pale yellow.
• the luminosity L * of the CIELAB system is greater than 70 and preferably 80
• the ISO whiteness according to ISO 2471 is preferably greater than or equal to 60% and the CD ⁇ whiteness according to the CIELAB formula is preferably greater than or equal to 20%
• this coating can be constituted by an ink or a varnish or even a composition coating or adhesive, which can be applied respectively by a printing or coating technique.
• the coating composition may especially comprise, in addition to said magnetic particles, a binder chosen from binders of polyvinyl alcohol (PVA) type, or other water-soluble binders or polymers in aqueous dispersion (latex), coating fillers, water and additives.
• the varnish may especially include, in addition to said magnetic particles, a polymeric binder, a solvent and additives.
• the coating composition can be applied by means known to a person skilled in the art with coating installations, such as a metal blade coater, an air knife coater, a CHAMPION type rotary bar coater, a transfer coater predose movie.
• inks or varnishes particular mention is made of printing inks or varnishes which can be applied by gravure printing, intaglio printing, offset printing or screen printing on a thickness of 1 to 5 ⁇ m.
• printing varnishes mention may be made of varnishes soluble in an aqueous medium or in an organic solvent which are dried by evaporation, and varnishes fixed by UN or electronic radiation (“electron beam”).
• said particles are included in a coating on the surface of the substrate, said coating can advantageously be transparent or translucent.
• said particles verify the following concentration and size characteristics, taken separately or in combination: a) when the particles are included in the mass of the substrate, their concentration is less than or equal to 1%, preferably 0.10%, preferably from 0.001% to 0.10%, more preferably from 0.02% to 0.07% by dry weight relative to the weight of said substrate in said zone, b) when said particles are included in a coating applied on the surface of said substrate, the quantity of magnetic particles deposited is less than or equal to 250 mg / m 2 , and preferably between 1 mg / m 2 and 100 mg / m 2 and d e preferably still between 5 mg / m 2 and 50 mg / m 2 , more particularly from 10 to 20 mg / m 2 , c) the magnetic particles have a size less than or equal to 2 ⁇ m, preferably less than 1 ⁇
• holograms or holographic security tapes are made up of multilayer complexes [(1) for holograms adhesive layer, embossing lacquer, aluminum and protective varnish (2) for holographic tapes the same layers as for holograms but applied to at least one layer of polyester, said strip being coated on its external faces with heat-sealing varnish] Then to have magnetic fibers, it was necessary to apply a magnetic layer in these complexes by an additional operation, the layer being in addition dark and thick
• holograms are p Once transparent holograms, that is to say non-metallized or partially demetallized holograms Gold, the presence of a dark magnetic layer is on the one hand incompatible with the transparency properties of the hologram and on the other hand, resists partial demetallization treatment of the
• the present invention makes it possible to associate magnetic particles with holograms in an advantageous manner. To do this, it suffices to mix the magnetic particles with the layers making up the hologram, such as the adhesive layer, the embossing lacquer, the protection or in the “p ⁇ mer” of adhesion of the hologram
• the hologram constitutes a holographic strip
• An additional advantage of holographic tapes is to obtain a hologram with magnetic properties without affecting traditional manufacturing procedures and without excessively increasing its thickness.
• the invention also provides a support allowing the recording of static and dynamic information which can be a hologram, in particular chosen from transparent or partially demetallized holograms, comprising magnetic particles.
• the mixing of magnetic particles in the mass of the substrate or a transparent to translucent coating makes it possible to distribute them uniformly over the entire surface of the support and to superimpose them on inscriptions or patterns, in negative or in positive, without altering their visibility and appearance.
• the support allowing the recording of static and dynamic information forms an integral part of the object relating to said information
• the support can be the object itself.
• This variant can be applied to plastic security documents and in particular to plastic banknotes whose traceability is to be followed or to an official document such as a passport cover, an identity card or a driving license or to a substrate intended for the manufacture of such an official document, in which said magnetic particles are applied in the mass of said substrate or in a coating on the surface of the substrate
• the magnetic particles are included in security inks.
• the present invention also enables a support consisting of a packaging sheet or a plastic sheet intended for the manufacture of a packaging sheet, said magnetic particles being embedded in the mass of the substrate constituting said sheet or in a coating applied to the surface of said substrate.
• the present invention also makes it possible to produce particularly advantageous plastic security labels.
• the magnetic particles can be incorporated into the mass of the substrate or into a coating applied to the surface of the substrate on the front of the label, in particular in a coating of the transparent varnish type, or on the back, in particular in an adhesive applied to the surface of said substrate on its back. In all cases, the recorded magnetic information is never visible, even on the back through the label holder such as a bottle, in particular when it is a label of a bottle of wine or a perfume bottle.
• the magnetic information can be presented according to various embodiments.
• the support includes magnetic particles in at least one continuous zone and the recording of the logical bits is done by magnetization with fields whose direction of magnetization is reversed in localized regions. More precisely, certain regions of the medium are saturated in one direction or another, said regions then corresponding to bits "0" or respectively "1" of the coded information.
• the data signal is analyzed at each clock pulse.
• it is not acceptable that the bits can be demagnetized because it is no longer possible to restore the information before detection or reading. It is therefore preferable in this second embodiment, to use magnetic particles of medium to high coercivity. which are not likely to be demagnetized by simple use.
• the support comprises magnetic particles in at least one continuous area and the recording is done according to an F / 2F type encoding as described in ISO standards 781 1-3 and 7811-6. Clock and bit tracks are merged. If the bit is a "1" there is a flow transition that takes place between two clock pulses, if the bit is a "0", there are no flow transitions between two clock pulses .
• coercivity particles of 15.5 10 ' ' at 800.10 3 A / m (about 200 to 10,000 Oe)
• the so-called low coercivity materials have a coercivity between 15.5 x 10 " 'and 32 x 10 " A / m (about 200 to 400 Oe) and are generally iron oxides
• the so-called medium coercitivity materials have a coercivity between 32 10 " and 135.10 " A / m (about 400 to 1700 Oe) and are generally iron oxides doped with cobalt or chromium dioxides.
• the so-called high coercivity materials have a coercivity between 135 10 J and 800 10 J A / m (approximately 1700 to 10 000 Oe), such as barium or strontium ferrites in particular respectively BaFe ⁇ 2 Ot ⁇ or SrFe ⁇ O19 are commonly used.
• the present invention also relates to a method of manufacturing a support according to the invention, characterized in that said magnetic particles are incorporated into the mass of the substrate or into a coating on the surface of the substrate in said zone, said particles having a size and concentration such that they do not affect the appearance characteristics of said zone.
• a dispersion of magnetic particles is mixed with the material of the substrate or a coating applied to the surface of the substrate.
• Different types of coating that can be applied to the surface of the substrate have been described above.
• a dispersion of magnetic particles in an organic medium is mixed with the base mixture to be used for the manufacture of said substrate consisting of a plastic sheet.
• the plastic sheets may in particular be based on a polyolefin such as polyethylene or polypropylene or their copolymers, and may comprise pigment fillers, anti-static agents. They can be obtained by extrusion or by injection. The sheets can be stretched.
• said particles dispersed in an organic or aqueous medium are incorporated into a coating applied to at least one of the faces of the substrate.
• a coating applied to at least one of the faces of the substrate.
• a dispersion of magnetic particles is carried out as follows. Magnetic particles are dispersed with stirring using a dispersing agent, such as a polyacrylate, and optionally a grinding resin, having good compatibility with the medium in which it will be incorporated later. The paste obtained is then treated in a ball mill to destroy the agglomerates and individualize the particles. The dispersion obtained comprises 10% of magnetic particles by dry weight.
• a dispersing agent such as a polyacrylate, and optionally a grinding resin, having good compatibility with the medium in which it will be incorporated later.
• the paste obtained is then treated in a ball mill to destroy the agglomerates and individualize the particles.
• the dispersion obtained comprises 10% of magnetic particles by dry weight.
• Magnetic particles are barium ferrites which have a coercivity of 218.84 x 10 J A / m (2750 Oe). The largest particle size is less than about 1 ⁇ m.
• the dispersion of magnetic particles and granules of a random copolymer of ethylene and propylene is mixed to form a masterbatch. This mixture is brought to 210 ° C. After passing through a multi-port die, the masterbatch obtained is cooled and dried. Passing through a granulator makes it possible to obtain rods (granules) of constant size.
• this masterbatch is introduced with another masterbatch comprising an ethylene-propylene copolymer and an antistatic agent and this mixture is brought to 210 ° C. After extrusion and calendering, a sheet of format 70 X 100 cm is obtained. The sheets obtained are translucent and have a thickness of 300 ⁇ m
• Identification information static and dynamic information relating to the traceability of the product are recorded, for example by performing an encoding such that each series of information is separated by a long series of “0” bits.
• the bottle thus labeled can be packaged in the packaging of Example 1, and thus record the same information both in the packaging and in the label. There is therefore a link between the product and its packaging.
• EXAMPLE 3 EXAMPLE 3:
• An aqueous dispersion of magnetic particles is produced in the following manner:
• the barium ferrite powder is added with stirring to an aqueous solution of a surfactant, both wetting and dispersing, such as an ammonium salt poly (acrylic acid) and optionally a grinding resin having good compatibility with the medium in which it will be incorporated later.
• a surfactant such as an ammonium salt poly (acrylic acid) and optionally a grinding resin having good compatibility with the medium in which it will be incorporated later.
• the paste obtained is then treated in a ball mill to destroy the agglomerates and individualize the particles.
• the concentrate of individualized magnetic particles is then rediluted and stabilized against the sedimentation of the particles by adding a rheology-modifying agent, such as for example an aqueous gel of bentonites or of pyrogenic silicas.
• the dispersion contains, by dry weight, 10 percent of magnetic particles.
• a packaging sheet is produced with a printing-writing and magnetic layer as follows: - a polyolefin sheet of 400 ⁇ m is produced, a composition in an aqueous medium is applied to the sheet by air knife : 100 parts by dry weight of a mixture of calcium carbonate and kaolin, 100 parts by dry weight of a styrene-butadiene carboxylated binder introduced in the form of a stabilized aqueous dispersion (latex), - 0.35 part by dry weight of magnetic particles introduced in the form of the dispersion of the previous examples. The quantity deposited is 10 g / m 2 by dry weight.
• An information recording is carried out as in Example 2.
• a package is produced with a transparent holographic strip as follows:
• an adhesion primer containing the magnetic particles is applied by screen printing.
• This primer is based on a styrene-acrylic polymer in an aqueous medium. 0.15 part of magnetic particles was introduced in the form of a magnetic dispersion of Example 3 per 100 parts of the primer by dry weight. 10 g / m 2 were deposited on a dry basis of the primer containing the particles.
• a transparent holographic strip with a thickness of 6 ⁇ m is applied, which comprises a heat-sealable adhesive, by the known method of transfer under heat and under pressure, on the magnetic primer of the polypropylene sheet.
• the observation of the hologram is not affected by the presence of the magnetic layer.
• Information recording is carried out as in Example 2 at the holographic strip level. We re-read the recording without being bothered by the presence of the holographic tape.
• the pressure forces exerted between the recording head and the samples and the head-sample distance were selected so as to have the best possible recording and a maximum amplitude of the signal during playback.
• Reading magnetic data the magnetic recording of the samples is read with a magnetoresistive read head.
• This magnetoresistive read head has a sensitivity of the order of 10 mV per Gauss and the resolution of the sensor is 27 ⁇ G.
• the width of the magnetoresistive head is 3 mm.
• the head-sample distance is less than 200 ⁇ m.
• the intensity of the current in the magnetoresistor is set to 10 mA.
• an output signal is read in millivolts (voltage difference resulting from the variation of the resistivity of the head during the passage of the sample) which translates, in absolute value, the magnetic flux transitions saved.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Computer Security & Cryptography (AREA)
• Credit Cards Or The Like (AREA)
• Magnetic Record Carriers (AREA)
• Paints Or Removers (AREA)
• Paper (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9513625

Family Applications (2)

Family Applications After (1)

Country Status (9)

Families Citing this family (20)

Family Cites Families (13)

• 1997
  • 1997-11-20 FR FR9714609A patent/FR2771111B1/fr not_active Expired - Fee Related
• 1998
  • 1998-11-19 ZA ZA9810576A patent/ZA9810576B/xx unknown
  • 1998-11-19 AR ARP980105863A patent/AR013768A1/es active IP Right Grant
  • 1998-11-20 EP EP98955704A patent/EP1034536B1/de not_active Expired - Lifetime
  • 1998-11-20 ES ES98955704T patent/ES2178281T3/es not_active Expired - Lifetime
  • 1998-11-20 DE DE69808331T patent/DE69808331T2/de not_active Expired - Lifetime
  • 1998-11-20 AT AT98955704T patent/ATE219598T1/de not_active IP Right Cessation
  • 1998-11-20 WO PCT/FR1998/002482 patent/WO1999027185A1/fr not_active Ceased
  • 1998-11-20 EP EP98955705A patent/EP1034330B1/de not_active Expired - Lifetime
  • 1998-11-20 AT AT98955705T patent/ATE224978T1/de not_active IP Right Cessation
  • 1998-11-20 DE DE69806181T patent/DE69806181T2/de not_active Expired - Lifetime
  • 1998-11-20 AU AU12453/99A patent/AU1245399A/en not_active Abandoned
  • 1998-11-20 WO PCT/FR1998/002481 patent/WO1999027531A1/fr not_active Ceased
  • 1998-11-20 ES ES98955705T patent/ES2185229T3/es not_active Expired - Lifetime
  • 1998-11-20 AU AU12452/99A patent/AU1245299A/en not_active Abandoned

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events