Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663072 | Food spoilage detection method | — | 1997-09-02 |
| 5244812 | Detection of electron acceptor gases using sulfur-selenium fulvalenes | Richard Ewen | 1993-09-14 |
| 4722905 | Semiconductors | Richard Ewen | 1988-02-02 |