Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749682 | Controlling the set of carbon-fiber embedded cement with electric current | — | 2004-06-15 |
| 5397481 | Submergible torch for treating waste solutions and method thereof | — | 1995-03-14 |
| 5370528 | Submergible torch for treating waste solutions and method thereof | — | 1994-12-06 |
| 5266174 | Process for reducing aqueous nitrate to ammonia | — | 1993-11-30 |
| 4828761 | Process for impregnating a concrete or cement body with a polymeric material | Roger D. Spence | 1989-05-09 |