Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5466284 | Universal black ink | Alfredo R. Dela Cruz | 1995-11-14 |
| 5384199 | Carbon paper and method for making same | Alfredo R. Dela Cruz | 1995-01-24 |
| 4467337 | Chemical carbonless copy paper | Walter S. Trahanovsky | 1984-08-21 |
| 4347282 | Chemical carbonless copy paper and transfer medium therefor | Gerry H. Ehrhardt | 1982-08-31 |
| 4343494 | Carbonless copy paper system | Gerry H. Ehrhardt | 1982-08-10 |
| 4327939 | Chemical carbonless copy paper and image receptor medium therefor | Gerry H. Ehrhardt | 1982-05-04 |
| 4226442 | Water insensitive image receptor coating | Gerry H. Ehrhardt | 1980-10-07 |