Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578632 | Swing mounted fill-up and circulating tool | — | 2003-06-17 |
| 4665977 | Tension set seal bore packer | — | 1987-05-19 |
| 4610300 | Tubing actuated retrievable packer | Patrick C. Stone, Gary Duron Ingram | 1986-09-09 |
| 4423777 | Fluid pressure actuated well tool | Clifford H. Beall | 1984-01-03 |
| 4311195 | Hydraulically set well packer | — | 1982-01-19 |
| 4311196 | Tangentially loaded slip assembly | Clifford H. Beall | 1982-01-19 |
| 4285400 | Releasing tool for pressure activated packer | — | 1981-08-25 |