Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4562853 | Downhole fire control | John E. Tschirky | 1986-01-07 |
| 4390064 | Junk basket | Jack Enen, Jr. | 1983-06-28 |
| 4213508 | Downhole fire control | John E. Tschirky | 1980-07-22 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4562853 | Downhole fire control | John E. Tschirky | 1986-01-07 |
| 4390064 | Junk basket | Jack Enen, Jr. | 1983-06-28 |
| 4213508 | Downhole fire control | John E. Tschirky | 1980-07-22 |