Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6631254 | Apparatus for producing a radio-frequency signal | Rick A. Hillum | 2003-10-07 |
| 4438046 | Quaternary ammonium salts | Edward L. Grew | 1984-03-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6631254 | Apparatus for producing a radio-frequency signal | Rick A. Hillum | 2003-10-07 |
| 4438046 | Quaternary ammonium salts | Edward L. Grew | 1984-03-20 |