Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791991 | Subsurface well safety valve with hydraulic strainer | Arthur J. Morris | 1988-12-20 |
| 4688641 | Well packer with releasable head and method of releasing | — | 1987-08-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791991 | Subsurface well safety valve with hydraulic strainer | Arthur J. Morris | 1988-12-20 |
| 4688641 | Well packer with releasable head and method of releasing | — | 1987-08-25 |