Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5565355 | Growth medium | — | 1996-10-15 |
| 5523230 | Method of environmental control | — | 1996-06-04 |
| 4740818 | Electrophotographic reproduction apparatus and method with selective screening | George N. Tsilibes, Pierce B. Day, David E. Hockey, Tomas Roztocil, John P. Swapceinski +1 more | 1988-04-26 |
| 4301832 | Pressure converter valve | — | 1981-11-24 |