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| Number | Title | Issue Date |
| 6474695 | Security element in the form of a thread or be embedded in security and methods of producing it A security element in the form of a thread or strip to be embedded in security documents such as bank notes, checks, bonds, identity cards, credit cards or the like, having characters, patterns, etc., that are readable by transmitted light to the naked ey... | 11/05/2002 |
| 6337752 | Data carrier having an optically variable element and methods for producing it The invention relates to a system comprising a series of data carriers, in particular identity cards, papers of value or the like, whereby the data carriers belonging to the system exhibit diffraction structures containing standard information and parts o... | 01/08/2002 |
| 6179338 | Compound film for an identity card with a humanly visible authenticity feature A multilayer data carrier is described which bears general printed data and furthermore has a transparent layer containing additives which are absorbent for a laser beam. The transparent layer is designed so that it exists in the card compound as a thin, ... | 01/30/2001 |
| 5944356 | Identity card with a humanly visible authenticity feature A multilayer data carrier is described which bears general printed data and furthermore has a transparent layer containing additives which are absorbent for a laser beam. The transparent layer is designed so that it exists in the card compound as a thin, ... | 08/31/1999 |
| 5917909 | System for testing the authenticity of a data carrier A system for testing the authenticity of a data carrier determines the physical property of the data carrier from an irreversibly adjustable electric state of a circuit present separately on the integrated circuit, and uses the electric property of the ci... | 06/29/1999 |
| 5801857 | Data carrier having an optically variable element and methods for producing it The invention relates to a system comprising a series of data carriers, in particular identity cards, papers of value or the like, whereby the data carriers belonging to the system exhibit diffraction structures containing standard information and parts o... | 09/01/1998 |
| 5599047 | Magnetic metallic safeguarding thread with negative writing and a method of making same The invention relates to a security document, in particular a bank note, identity card or the like, having a security element which is provided with characters, patterns, etc., visually readable at least in transmitted light and which is electrically cond... | 02/04/1997 |
| 5600818 | Data protective microprocessor circuit for portable data carriers, for example credit cards A data protective microprocessor circuit for preventing access to data or programs stored in memories, includes a microprocessor, a memory for storing an operating system, at least one memory with an individual secondary program, a circuit for monitoring ... | 02/04/1997 |
| 5567276 | Paper of value and a method of producing it The present invention relates to a paper of value having an embedded security element, preferably an optically variable element in the form of hologram, diffraction or interference structures applied to the paper surface, and to a method for producing suc... | 10/22/1996 |
| 5463953 | Method for printing cards having blind hole-shaped recesses and an apparatus for carrying out the method A method for printing identity cards having blind hole-shaped recesses involves filling the recess at least partly with an element at the moment of printing so that the bottom of the recess is pressed against the printing surface. The elements are either ... | 11/07/1995 |
| 5458713 | Multilayer data carrier and a method for producing it The present invention relates to a data carrier, in particular an identity card, paper of value or the like, having applied thereto a plane element (OVD) with optically variable effects which are dependent on the viewing angle. Within at least a predefine... | 10/17/1995 |
| 5457382 | Apparatus for testing documents having magnetic properties In an apparatus for testing test objects equipped with magnetic properties, the magnetic circuit with an air gap having a detector consists of at least a soft-magnetic material and a permanent-magnetic material, whereby the static magnetic field produced ... | 10/10/1995 |
| 5354099 | Magnetic metallic safeguarding thread with negative writing The invention relates to a security document, in particular a bank note, identity card or the like having a security element which is provided with characters, patterns, etc., visually readable at least in transmitted light and which is electrically condu... | 10/11/1994 |
| 5350198 | Recording medium with colored picture information, in particular a check card or identity card A recording medium is provided with picture information in a tamper-resistant and high-resolution form. The picture information is broken down into a light/dark portion and a color portion. The light/dark portion needed for the visual impression is incorp... | 09/27/1994 |
| 5348460 | Apparatus for producing flat plastic moldings, for example identity cards In an apparatus for producing flat plastic moldings, for example identity cards, the mold includes a conic core and a die-block member shaped in accordance with the core member. The opposing side surfaces of the core and die-block members, which are incli... | 09/20/1994 |
| 5310036 | Method for checking the correct processing of bank notes The invention relates to a method for checking the correct processing of bank notes in automatic bank note sorters for sorting certain amounts of money into different categories according to given criteria, whereby partial amounts are destroyed if necessa... | 05/10/1994 |
| 5304513 | Method for manufacturing an encapsulated semiconductor package using an adhesive barrier frame A process for manufacturing a carrier element is described that has one or more ICs to be incorporated into an identity card or credit card. The carrier element comprises a substrate having on its surface a plurality of contact areas which are connected v... | 04/19/1994 |
| 5280333 | Apparatus and a method for testing documents In an apparatus for testing documents, the optical illuminating unit comprises at least one light guide provided with fluorescent substance for directing at least two light fractions of different wavelengths onto a common area of the document. The light f... | 01/18/1994 |
| 5251937 | Multilayer data carrier and a method for producing it The present invention relates to a data carrier, in particular an identity card, paper of value or the like, having applied thereto a plane element (OVD) with optically variable effects which are dependent on the viewing angle. Within at least a predefine... | 10/12/1993 |
| 5149139 | Stamp such as a postage stamp and a method for producing it Stamps such as postage stamps, fee stamps, etc., involve the problem of being machine testable with respect to their position on the carrier and their authenticity, and of assuring that they can only be used once. A stamp is proposed with characterizing p... | 09/22/1992 |
| 5055913 | Terminal arrangement for integrated circuit device An integrated circuit includes electrically conductive terminals arranged to be connected to external leads for communication between the leads and the circuitry of the integrated circuit device. The terminals of the circuit device are disposed at a surfa... | 10/08/1991 |
| 4988126 | Document with an unforgeable surface Documents and data, patterns, etc., applied thereto, which are present in the form of a surface relief, in particular in the form of embossed characters, are provided partially in the area of this surface relief with luminescent substance which is testabl... | 01/29/1991 |
| 4966857 | Data carrier having an integrated circuit and a method for producing same A method of making a laminated multi-layer data carrier includes laminating a core layer, an intermediate substrate carrying an IC module, electrical contact pads, and electrical leads connecting the IC module to the contact pads, and a cover layer having... | 10/30/1990 |
| 4926031 | Token such as credit or identification card and an apparatus for testing the token or card A security document such as a credit card or the like carries an automatically, machine-sensed material adapted to generate reproducible signals unique to such document. The material is arranged randomly along a line-like track and sensed by a scanning he... | 05/15/1990 |
| 4906827 | Apparatus for automatically cancelling bank notes An apparatus for automatically cancelling bank notes comprises an ink jet printer which provides cancellation markings on bank notes in contactless fashion. A marking sensor which checks the presence of the markings is protected, along with the ink jet pr... | 03/06/1990 |
| 4897300 | Security paper The invention relates to a security paper having a security thread embedded therein, running from edge to edge, that is printed with luminescent colors in such a way that they are invisible in normal lighting. The luminescent colors are provided along the... | 01/30/1990 |
| 4894110 | Identification card with a visible authenticity feature Information is provided in a multilayer identification card by means of a laser beam. This information is recorded by irreversibly changing (blackening) transparent synthetic material. Synthetic materials which blacked at different intensity values are us... | 01/16/1990 |
| 4892336 | Antifalsification document having a security thread embedded therein and a method for producing the same The present invention relates to an antifalsification document having an embedded secutiry thread, and to a method for producing the same. This security thread is transparent and has a printed pattern on one side and, on the opposite side, a lenticular st... | 01/09/1990 |
| 4878626 | Apparatus for destroying banknotes In a high-speed sorter, single documents such as banknotes are successively withdrawn from a stack and tested according to various criteria. Banknotes which are authentic but no longer fit for circulation are fed to a cutting means a shredder and destroye... | 11/07/1989 |
| 4777729 | Thickness measuring apparatus for sheet material A thickness measuring apparatus for sheet material has before the actual measuring gap a pretest sensing element which responds to overthicknesses in the material under test transported to the apparatus and, if necessary, swivels the measuring system out ... | 10/18/1988 |
| 4766026 | Identification card with a visible authenticity feature and a method of manufacturing said card Information is provided in a multilayer identification card by means of a laser beam. This information is recorded by irreversibly changing (blackening) transparent synthetic material. Synthetic materials which blacken at different intensity values are us... | 08/23/1988 |
| 4765656 | Data carrier having an optical authenticity feature and methods for producing and testing said data carrier The present invention relates to a data carrier (identification card, bank card, credit card, etc.) in which information is provided in an inner volume area by means of a laser beam, the information being visible in the form of changes in the optical prop... | 08/23/1988 |
| 4748452 | Method of producing an identification card An identification card with high-embossed data, in which the high-embossed data are superimposed by a security pattern which is inscribed in the identification card by means of a laser beam recorder. The security pattern may be present, for example, only ... | 05/31/1988 |
| 4746392 | Method for producing an identification card with an integrated circuit A multilayer identification card containing an IC module in a cavity. The cavity is filled with a polymer with a consistency ranging from liquid to pasty before the card compound is laminated using pressure and heat. During lamination, the polymer complet... | 05/24/1988 |
| 4717137 | Apparatus and a method for separating sheet material A separating apparatus, to which the sheet material is transported in stacks via a stack transporting system, comprises a movable retaining means which reduces the separating gap before the stack is fed and is restored to its original width immediately be... | 01/05/1988 |
| 4711690 | Method for making an identification card having features for testing in incident and transmitted light The multilayer identification card comprises several synthetic layers compounded by the effects of heat and pressure. An inside interface of at least one of these layers exhibits depressions which are filled with the material of the adjacent layer during ... | 12/08/1987 |
| 4691940 | Printed security with hallmarks The invention relates to a printed security with a hallmark in the form of a coating applied in a vacuum to the surface of the security. This coating is so thin that it is almost invisible even as a metal layer, while at the same time permitting accurate ... | 09/08/1987 |
| 4659113 | Method of screening half-tone picture themes A method of screening half-tone picture themes, in which the gray tones of the half-tone picture theme are reproduced by changes in the structural width of a basic screen structure having any desired form. The assignment of a gray tone area of the half-to... | 04/21/1987 |
| 4639585 | Data carrier with an IC module and a method for producing such a data carrier The integrated circuit embedded in a data carrier and the contact surfaces connected with this circuit are to be protected against bending of the data carrier. For this purpose, the data carrier is divided into two areas, the first one, which bears the ci... | 01/27/1987 |
| 4617605 | Carrier element for an IC module A carrier element for an IC module for incorporation into data carriers, in which the IC module is connectd with contact surfaces by means of leads, and the contact surfaces are designed for direct contacting. In order to protect the Integrated Circuit against... | 10/14/1986 |
