Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5331023 | Pressure-sensitive crayon adhesive | Peter S. Columbus | 1994-07-19 |
| 5322880 | Thixotropic adhesive gel | Peter S. Columbus, John Anderson | 1994-06-21 |
| 5284897 | Thixotropic adhesive gel | Peter S. Columbus, John Anderson | 1994-02-08 |