Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6770687 | Water-based dual security ink | Yaoping Tan | 2004-08-03 |
| 6613403 | Ink with near infrared fluorophores and U.V. absorbers | Yaoping Tan, David M. Dashiell | 2003-09-02 |
| 6165937 | Thermal paper with a near infrared radiation scannable data image | Richard D. Puckett, Yaoping Tan | 2000-12-26 |
| 6106910 | Print media with near infrared fluorescent sense mark and printer therefor | Yaoping Tan, Bernard J. Jergens | 2000-08-22 |
| 6060426 | Thermal paper with security features | Yaoping Tan, Bernard J. Jergens | 2000-05-09 |
| 5883043 | Thermal paper with security features | Wendell B. Halbrook, Jr., Christopher L. Langston, Yaoping Tan | 1999-03-16 |
| 5741592 | Microsencapsulated system for thermal paper | John C. Rosenbaum, Albert J. Herbert, Pankaj Attri | 1998-04-21 |
| 4853256 | Two ply thermal paper and method of making | Thomas J. Obringer, Louis F. Siegel | 1989-08-01 |
| 4740495 | Protective coating for thermosensitive material | Nicola Marinelli, Stephen D. Lakes, Paul W. Seitz | 1988-04-26 |
| 4641159 | Protective barrier and method of providing same for thermosensitive sheet | Paul W. Seitz, Stephen D. Lakes | 1987-02-03 |
| 4523207 | Multiple copy thermal record sheet | Stephen D. Lakes | 1985-06-11 |