Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304458 | Numeral font | — | 1989-11-07 |
| 4749213 | Secure financial instrument | — | 1988-06-07 |
| 4733887 | Secure financial document | — | 1988-03-29 |
| 4681348 | Financial document protection | — | 1987-07-21 |
| 4662651 | Document protection using multicolor characters | — | 1987-05-05 |
| 4579370 | Multi-tone cancellation phrase and background | Thomas R. Corwin | 1986-04-01 |
| 4420175 | Color copy resistant document using irregular outline letters in a multi-void background | — | 1983-12-13 |
| 4406389 | High speed web processing unit adjustable to variable length documents | Michael J. Poccia | 1983-09-27 |
| 4341404 | Security document using a variable dot screen | Kathleen M. Gerew | 1982-07-27 |
| 4310180 | Protected document and method of making same | Michael J. McElligott, Victor J. Tkalenko, Jr., Joseph Baran | 1982-01-12 |
| 4265469 | Protected document and method of making same | Michael J. McElligott, Victor J. Tkalenko, Jr., Joseph Baran | 1981-05-05 |
| 4227720 | Protected document | Michael J. McElligott, Victor J. Tkalenko, Jr., Joseph Baran | 1980-10-14 |
| 4210346 | Protected document bearing watermark and method of making | Michael J. McElligott, Victor J. Tkalenko, Jr., Joseph Baran, Curtis W. Ingalls | 1980-07-01 |