Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10100605 | Differential safety valve | Michael G. Gay, Ann Kamel Fitzgerald, Theodore Lee Cottrell | 2018-10-16 |
| 5507006 | Cellular radio system for transmission of signalling information on the basis of its urgency or during temporary cessation of communication | — | 1996-04-09 |