Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277879 | Sulfider with removable injectors | Frank J. Elvin | 1994-01-11 |
| 5225169 | Reduced heat loss sulfider | Frank J. Elvin | 1993-07-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277879 | Sulfider with removable injectors | Frank J. Elvin | 1994-01-11 |
| 5225169 | Reduced heat loss sulfider | Frank J. Elvin | 1993-07-06 |