Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5502155 | Manufacture of partially aromatic polyamides | — | 1996-03-26 |
| 5458725 | Gas distribution system | George F. Granger | 1995-10-17 |
| 5194514 | Microwave treatment of polymer | Jeffrey K. S. Wan, Mary C. Depwe | 1993-03-16 |
| 4959267 | Fiber reinforced rubber products | Frederick J. Hunter | 1990-09-25 |
| 4674114 | Fraud prevention in an electronic coin telephone set | Paul E. Crouch, Joseph J. Nahas | 1987-06-16 |
| 4625078 | Fraud prevention in an electronic coin telephone set | Paul E. Crouch, Joseph J. Nahas | 1986-11-25 |
| 4567325 | Controller for a coin telephone set | Paul E. Crouch, Joseph J. Nahas | 1986-01-28 |