Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5269267 | Mechanism for controlling valve timing | — | 1993-12-14 |
| 5165370 | Mechanism for controlling valve timing | — | 1992-11-24 |
| 4237726 | Process for predicting the useful life of a respirator cartridge | Robert L. Peterson, Bruce P. Johnson | 1980-12-09 |