Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820101 | Automated in-process pipe storage and retrieval system | — | 1989-04-11 |
| 4727996 | Variable grip lifting mechanism | Tim Abblett, John Sanor | 1988-03-01 |
| 4642017 | Automated in-process pipe storage and retrieval system | — | 1987-02-10 |