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| Number | Title | Issue Date |
| 7040663 | Value document The invention relates to a document of value such as a paper of value or ID card with a security element having an optically variable material. Said optically variable material conveys different color effects at different viewing angles. Additionally, the security e... | 05/09/2006 |
| 6343745 | Security device The invention relates to a security element for a security document such as a bank note, ID card or the like consisting of a translucent plastic layer having an opaque layer with gaps in the form of characters, patterns or the like recognizable in transmi... | 02/05/2002 |
| 6260885 | Latent fingerprint lifting and recordation device A latent fingerprint lifting and recordation device of the type which provides a permanent and official fingerprint document. The device includes a flexible transparent latent fingerprint lifting sheet having one adhesive surface thereof and a flat opaque... | 07/17/2001 |
| 6171734 | Security printed document to prevent unauthorized copying A paper substrate is laminated with a metalized layer forming a mirrored surface. A partially transparent black diffraction grating is applied by stochastic screening to the mirrored surface. The diffraction grating forms a random pattern from selected ge... | 01/09/2001 |
| 6033392 | IV pole bag fabricated from anti-microbial material A bag for securing an irrigation syringe to an IV pole includes a first sheet of flexible material having four sides, and a second sheet of flexible material having four sides which are sealingly attached to the first sheet along three sides thereof. The ... | 03/07/2000 |
| 5830609 | Security printed document to prevent unauthorized copying A paper substrate is laminated with a metalized layer forming a mirrored surface. A partially transparent black diffraction grating is applied by stochastic screening to the mirrored surface. The diffraction grating forms a frequency modulated pattern fro... | 11/03/1998 |
| 5704652 | Tamper evident and counterfeit resisting informational article and associated method The present invention is directed toward a tamper evident informational article such as a temporary vehicle registration which may be made of paper or paperboard. The informational article has a zone for inserting information and a pattern within said zon... | 01/06/1998 |
| 4507349 | Security medium and secure articles and methods of making same A security medium, secure articles made therefrom and methods of making same. Articles are disclosed which are resistant to counterfeiting and unauthorized alteration and which are suitable for use as currency, securities, security passes, identification ... | 03/26/1985 |
| 4231593 | Check with electrically conductive layer A check has first and second coatings one of which is electrically conductive and the other electrically non-conductive. The coatings are of contrasting colors and one of the coatings is electrically vaporizable for exposing the underlying coating during ... | 11/04/1980 |
| 4230344 | Business form with electrically conductive layer A business form has first and second coatings one of which is electrically conductive and the other is electrically non-conductive. The coatings are of contrasting colors and the second coating is electrically vaporizable for exposing the underlying coati... | 10/28/1980 |
| 4166144 | Electrosensitive metalized label stock A design for a metallized electrosensitive label stock, and similar die-cut substrates for electrothermal printing. Imprinting occurs when an image-bearing stylus at a given potential contacts one portion of the substrate's metallized surface, while a gro... | 08/28/1979 |
