Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644352 | Multicolor heat-sensitive verification and highlighting system | Eric Wendler, Vance P. Gregory, Jr. | 1997-07-01 |
| 5618063 | Multicolor heat-sensitive verification and highlighting system | Eric Wendler, Vance P. Gregory, Jr. | 1997-04-08 |
| 5612541 | Ultraviolet radiation monitoring device and use thereof | Donald J. Hoffmann | 1997-03-18 |
| 5605873 | Pressure-sensitive verification system and use thereof | — | 1997-02-25 |
| 5595955 | Verification method using pressure and heat-sensitive chromogenic system | Richard H. Johnson | 1997-01-21 |