| US5144495A (en) | 1987-12-03 | 1992-09-01 | Compugrade, Inc | Systems for illuminating and evaluating surfaces |
| US4899392A (en) | 1987-12-03 | 1990-02-06 | Cing Corporation | Method and system for objectively grading and identifying coins |
| US5133019A (en) | 1987-12-03 | 1992-07-21 | Identigrade | Systems and methods for illuminating and evaluating surfaces |
| US5046841A (en) | 1989-01-19 | 1991-09-10 | Idx, Inc. | Token having a predetermined optical characteristic, and a token validation device for use therewith |
| US5216234A (en) | 1990-03-29 | 1993-06-01 | Jani Supplies Enterprises, Inc. | Tokens having minted identification codes |
| US5220614A (en) | 1991-02-22 | 1993-06-15 | Professional Coin Grading Service, Inc. | Automated coin grading system |
| US5521984A (en)* | 1993-06-10 | 1996-05-28 | Verification Technologies, Inc. | System for registration, identification and verification of items utilizing unique intrinsic features |
| US8505108B2 (en) | 1993-11-18 | 2013-08-06 | Digimarc Corporation | Authentication using a digital watermark |
| US6325197B1 (en) | 1999-02-25 | 2001-12-04 | Kabushiki Kaisha Nippon Conlux | Method and device for checking coin for forgery |
| US6305523B1 (en) | 1999-10-22 | 2001-10-23 | Japan Tobacco Inc. | Coin discriminating apparatus |
| US6823315B1 (en) | 1999-11-03 | 2004-11-23 | Kronos Technology Systems Limited Partnership | Dynamic workforce scheduler |
| DE10002644A1 (en) | 2000-01-21 | 2001-08-16 | Ovd Kinegram Ag Zug | Coin with diffraction structures |
| US6685000B2 (en) | 2000-05-19 | 2004-02-03 | Kabushiki Kaisha Nippon Conlux | Coin discrimination method and device |
| JP2003187289A (en) | 2001-12-21 | 2003-07-04 | Sankyo Seiki Mfg Co Ltd | Method for identifying circular body to be detected |
| JP2003196657A (en) | 2001-12-27 | 2003-07-11 | Nidec Copal Corp | Pattern recognition device |
| JP4114375B2 (en) | 2002-03-20 | 2008-07-09 | 三菱電機株式会社 | Identification device |
| JP2004078478A (en) | 2002-08-14 | 2004-03-11 | Sunplus Technology Co Ltd | Currency identifying device and method |
| JP3945379B2 (en) | 2002-11-06 | 2007-07-18 | 松下電器産業株式会社 | Pattern recognition device |
| JP4337422B2 (en)* | 2003-06-20 | 2009-09-30 | 富士ゼロックス株式会社 | Article registration apparatus, article confirmation apparatus, and article registration confirmation apparatus |
| US7389939B2 (en)* | 2003-09-26 | 2008-06-24 | Digimarc Corporation | Optically variable security features having covert forensic features |
| US7687271B2 (en)* | 2004-04-22 | 2010-03-30 | Kodak Graphic Communications Canada Company | Covert authentication method and apparatus |
| US20100297027A1 (en)* | 2004-12-20 | 2010-11-25 | Nanolnk, Inc. | Overt authentication features for compositions and objects and methods of fabrication and verification thereof |
| JP4932177B2 (en) | 2005-04-19 | 2012-05-16 | グローリー株式会社 | Coin classification device and coin classification method |
| US7469828B2 (en) | 2005-05-20 | 2008-12-30 | Computype, Inc. | Configuration system and method |
| FR2895541B3 (en) | 2005-12-23 | 2008-04-18 | Signoptic Technologies Sarl | METHOD FOR EXTRACTING A RANDOM SIGNATURE FROM A MATERIAL ELEMENT |
| US20080230402A1 (en) | 2006-07-26 | 2008-09-25 | Macor James J | Authentication and identification device for a collectable object |
| WO2008048575A2 (en)* | 2006-10-16 | 2008-04-24 | Medtronic, Inc. | Vessel support device and method of vessel harvesting |
| GB2450131B (en) | 2007-06-13 | 2009-05-06 | Ingenia Holdings | Fuzzy Keys |
| US8090952B2 (en) | 2007-07-06 | 2012-01-03 | Harris Scott C | Counterfeit prevention system based on random positioning on a pattern |
| US20090080760A1 (en)* | 2007-09-21 | 2009-03-26 | Microsecurity Lab Inc. | Anti-counterfeiting mark and methods |
| US20090083151A1 (en) | 2007-09-25 | 2009-03-26 | Urban Martin A | Method Of Advertising On Postage |
| JP2009109419A (en) | 2007-10-31 | 2009-05-21 | Sony Corp | Product identification apparatus, product identification method, and program |
| CA2757181C (en) | 2008-04-18 | 2017-10-24 | Coinsecure, Inc. | Apparatus for producing optical signatures from coinage |
| JP2011529314A (en) | 2008-07-28 | 2011-12-01 | ワイズキー・エスアー | Method and means for digital authentication for high value products |
| JP2010092435A (en) | 2008-10-10 | 2010-04-22 | Juki Corp | Method and device for determining authenticity of coin |
| US8253536B2 (en) | 2009-04-22 | 2012-08-28 | Simon Fraser University | Security document with electroactive polymer power source and nano-optical display |
| US8661889B2 (en)* | 2009-07-16 | 2014-03-04 | Duane C. Blake | AURA devices and methods for increasing rare coin value |
| EP2545496A4 (en) | 2010-03-10 | 2017-08-23 | LinkSmart Technologies Pvt. Ltd. | A method of content authentication inside a sealed box using special labels |
| JP2012083964A (en) | 2010-10-12 | 2012-04-26 | Glory Ltd | Coin processor and coin processing method |
| JP2012121173A (en) | 2010-12-06 | 2012-06-28 | Dainippon Printing Co Ltd | Taggant particle group, anti-counterfeit ink comprising the same, anti-counterfeit toner, anti-counterfeit sheet, and anti-counterfeit medium |
| US20120273564A1 (en) | 2011-04-26 | 2012-11-01 | Mercolino Thomas J | Product authentication and item identification |
| JP6036805B2 (en)* | 2011-04-29 | 2016-12-07 | モネ ロワイヤル カナディエンヌ/ロイヤル カナディアン ミントMonnaie Royale Canadienne/Royal Canadian Mint | Method and apparatus for appraisal of coins or other manufactured goods |
| US9367912B2 (en) | 2013-11-11 | 2016-06-14 | Christopher J. Rourk | Coin grading system and method |