Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349218 | Copying material employing fluoran color formers | Robert Garner | 1982-09-14 |
| 4316621 | Pressure-sensitive or heat-sensitive recording material | — | 1982-02-23 |
| 4316036 | Benzopyranothiazoles | — | 1982-02-16 |
| 4309047 | Pressure-sensitive or heat-sensitive recording material | — | 1982-01-05 |