Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4945938 | Reels and carriers therefor | George L. Ponsford, William H. McCormick, Malcolm N. Council | 1990-08-07 |
| 4574883 | Well tool stopping devices, systems and methods | Joseph L. Pearce | 1986-03-11 |
| 4465132 | Releasable well tool stopping devices and systems | Joseph L. Pearce | 1984-08-14 |