Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329999 | Annular safety system | Lewis D. Proctor | 1994-07-19 |
| 5305828 | Combination packer/safety valve assembly for gas storage wells | Robert W. Crow | 1994-04-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329999 | Annular safety system | Lewis D. Proctor | 1994-07-19 |
| 5305828 | Combination packer/safety valve assembly for gas storage wells | Robert W. Crow | 1994-04-26 |