| Patents for G07D 7 - Testing specially adapted to determine the identity or genuineness of paper currency or similar valuable papers, e.g. for segregating those which are unacceptable or alien to a currency (13,602) |
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| 05/28/1991 | US5020110 Arrangement for checking documents |
| 05/28/1991 | US5018830 Authenticity mark, document carrying such mark, and process and device for reading and validating such mark |
| 05/22/1991 | CN2077569U A.c/d.c identifier for foreign currency |
| 05/21/1991 | US5018207 Apparatus for objectively grading centering condition of a stamp |
| 05/21/1991 | US5017773 Apparatus for detecting number of packs included in bundle |
| 05/21/1991 | US5017084 Automatic manipulation system and method |
| 05/15/1991 | EP0426801A1 Security document with embedded security element with visually and mechanically verifiable distinguishing signs. |
| 05/14/1991 | US5014857 Discriminating apparatus for printed matter |
| 05/07/1991 | US5014325 Apparatus for discriminating specified sorts of printed matters |
| 05/07/1991 | US5014006 Thin film magnetic core device with a pair of magnetic circuits for measuring a weak magnetic flux |
| 05/01/1991 | CN1012539B Tokens and apparatus for handling tokens |
| 04/30/1991 | US5011128 Apparatus for detecting the thickness of sheets |
| 04/24/1991 | EP0424342A2 Counterfeit document detector |
| 04/17/1991 | EP0423038A1 Method for authentication of an object by means of electron spin resonance, apparatus for implementing this method and object to be used with it |
| 04/03/1991 | CN2074476U Paper currency testing unit of paper currency counter |
| 03/27/1991 | CN2074034U Distinguishing device for counterfeit paper money |
| 03/26/1991 | US5002636 Security paper for currency and bank notes |
| 03/26/1991 | CA1282171C Banknote denomination reader system for the blind |
| 03/23/1991 | WO1991004549A1 Magnetic code reader with adjustable thresholds |
| 03/12/1991 | US4998998 Sheet discriminating apparatus |
| 03/12/1991 | CA1281416C System and method for automatically identifying coupon shipment irregularities |
| 03/07/1991 | WO1991003031A1 Optical testing for genuineness of bank notes and similar paper bills |
| 03/07/1991 | CA2066201A1 Optical testing for genuineness of bank notes and similar paper bills |
| 03/05/1991 | CA1281125C Production of an image model and inspection of pixel representation of an image |
| 02/20/1991 | EP0413534A1 Thread detector assembly |
| 02/20/1991 | EP0413441A1 Radiation generator control apparatus |
| 02/13/1991 | EP0412905A1 Security paper |
| 02/06/1991 | EP0411779A1 Guarantee system for high-value articles such as objects of art |
| 02/05/1991 | US4990790 Method for discriminating authenticity of a bill using polarization and an apparatus therefor |
| 01/29/1991 | US4988206 Methods are apparatus for monitoring the diffuse reflectivity of a surface |
| 01/24/1991 | CA2014083A1 Guarantee system for high-value articles such as objects of art |
| 01/23/1991 | EP0408617A1 Sensor for verification of genuineness of security paper. |
| 01/16/1991 | EP0408424A1 Method and device for high-security encyphered marking to protect high-value objects |
| 01/16/1991 | EP0408337A1 Sheet inspection method and apparatus |
| 01/15/1991 | US4985636 Medium detecting system with automatic compensation for sensor variations |
| 01/10/1991 | WO1991000390A1 Document security method and system |
| 01/09/1991 | EP0407005A1 Verification device for a security system |
| 01/08/1991 | US4984280 Bill discriminating apparatus |
| 01/08/1991 | US4984073 Methods and systems for scanning and inspecting images |
| 01/03/1991 | DE3921636A1 Printed matter protected against colour copying by pattern - printed in light colour mixt. giving visibly different colour in copy |
| 01/02/1991 | EP0265497A4 Information transfer and use, particularly with respect to objects such as gambling chips |
| 01/01/1991 | US4982073 Token such as a credit or identification card and an apparatus for testing the token or card |
| 12/27/1990 | EP0403983A2 Method and apparatus for validating a paper-like piece |
| 12/25/1990 | US4980569 Security paper verification device |
| 12/18/1990 | US4979029 Method and systems for scanning and inspecting images |
| 12/05/1990 | EP0400902A2 Security paper |
| 12/02/1990 | CA2018127A1 Security paper |
| 11/28/1990 | EP0398982A1 Qualification system for printed images |
| 11/28/1990 | EP0193590B1 Apparatus for sensing the condition of a document |
| 11/27/1990 | US4973851 Method of determining the validity of a document |
| 11/21/1990 | CN2066166U Pocket verifying instrument for negotiable securities |
| 11/20/1990 | US4972475 Authenticating pseudo-random code and apparatus |
| 11/20/1990 | CA1276724C Paperless system for distributing, redeeming and clearing merchandise coupons |
| 11/15/1990 | WO1990013877A1 Security document with embedded security element with visually and mechanically verifiable distinguishing signs |
| 11/07/1990 | EP0395833A1 Method and apparatus for checking documents |
| 11/06/1990 | US4969038 Method for scanning image information |
| 11/01/1990 | CA2015148A1 Testing apparatus for an item in sheet form |
| 10/30/1990 | US4967156 Thin film high permeability magnetic core flux gate device for measuring a weak magnetic field |
| 10/03/1990 | EP0390582A1 A magnetic sensor |
| 10/03/1990 | EP0390405A1 Magnetic sensor unit |
| 09/13/1990 | DE4006514A1 Vorrichtung zur automatischen, unbeaufsichtigten artikel-abfertigung und coupon-bearbeitung Apparatus for automatic, unattended items and severance-coupon-processing |
| 09/11/1990 | CA1274017A1 Method and apparatus for checking the authenticity of documents and documents used therefor |
| 09/07/1990 | CA2007928A1 Coupon processing and checkout system |
| 09/05/1990 | CN1045069A Currency paper, especially bank note, with safety design and process for producing it |
| 08/29/1990 | EP0384897A1 Security paper, especially a banknote, with a security pattern, and method for manufacturing it |
| 08/23/1990 | DE3905155A1 Data medium (data carrier), in particular securities having a printed image which can be reproduced in colour copiers only in a corrupted manner |
| 08/23/1990 | CA2010747A1 Currency paper, especially bank note, with a safety design and process for producing it |
| 08/16/1990 | EP0382549A2 Apparatus for image reading or processing |
| 08/14/1990 | US4949256 Coupon validation network with storage of customer coupon data for credit on future purchases |
| 08/08/1990 | EP0381550A1 Fast apparatus and method for recognizing water marks by electromagnetic rays |
| 08/08/1990 | EP0381112A2 Method and apparatus for working webs in register, especially when producing safety yarns |
| 08/07/1990 | US4947441 Bill discriminating apparatus |
| 07/31/1990 | US4944505 Sheet length detector with skew compensation |
| 07/21/1990 | WO1990008367A1 Coding security threads for bank notes and security papers |
| 07/18/1990 | EP0241513B1 Multiple sheet indicator apparatus and method |
| 07/17/1990 | US4941687 Security paper for currency and bank notes |
| 07/11/1990 | EP0377167A1 Safety element to protect documents against unauthorized reproduction |
| 07/11/1990 | EP0377160A1 Safety document including an electricity conductor safety element |
| 07/03/1990 | US4939676 Monitoring sheet length |
| 07/03/1990 | US4938071 Device for detecting properties of sheets of paper of the like |
| 06/28/1990 | WO1990007165A1 Banknote counterfeit detecting apparatus |
| 06/27/1990 | EP0374799A2 Apparatus for detecting number of packs included in bundle |
| 06/27/1990 | EP0374763A2 Security elements in the form of threads or strips to be embedded in security documents, and method of producing and testing same |
| 06/26/1990 | US4937742 Automated system for statistically analyzing data characteristics of shipments of coupons to identify instances of coupon shipment parametric abnormalities |
| 06/20/1990 | EP0373500A2 Anti-forgery system for paper money or other documents |
| 06/19/1990 | US4935628 Method and apparatus for detecting inks |
| 05/30/1990 | EP0370048A1 Individual-specific antibody identification methods |
| 05/29/1990 | US4929928 Magnetized ink, paint or dye used on merchandise to prevent theft |
| 05/29/1990 | US4929843 Apparatus and method for determining a dimension of an object |
| 05/16/1990 | CN1042255A Receipt for appraising the true and false goods |
| 05/15/1990 | US4926031 Security document |
| 05/15/1990 | US4925215 Bonding ink containing iron oxide to nonmagnetic ink |
| 05/02/1990 | EP0366399A2 Image processing apparatus and method therefor |
| 05/02/1990 | EP0366306A2 Method for discriminating authenticity of a bill and an apparatus therefor |
| 05/01/1990 | US4922109 Device for recognizing authentic documents using optical modulas |
| 05/01/1990 | US4921534 Security markings, material provided with security marks, and apparatus to detect the security mark |
| 04/18/1990 | EP0364029A1 Authenticity mark, document carrying such mark, and process and device for reading and validating such mark |
| 04/10/1990 | US4916295 Document detecting arrangement |
| 04/10/1990 | CA2000405A1 Authenticity mark, document carrying such mark, and process and device for reading and validating such mark |
| 04/04/1990 | EP0360969A1 Diffraction element |