Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5478380 | Chromogenic composition for use in pressure-sensitive record material | Margaret P. Templey, Ivan Sheiham | 1995-12-26 |
| 5464803 | Pressure-sensitive record material | Gordon B. McGuinness | 1995-11-07 |