Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689949 | Ignition methods and apparatus using microwave energy | Dennis M. DeFreitas, Timothy W. Darling, Daniel E. Rees | 1997-11-25 |
| 5673554 | Ignition methods and apparatus using microwave energy | Dennis M. DeFreitas | 1997-10-07 |