Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10260210 | Offshore structure | David Leonard Hall, Gary Dean, Duncan Knight, Anthony Clark, Andrew Kirkpatrick +5 more | 2019-04-16 |
| 9945087 | Offshore structure | David Leonard Hall, Gary Dean, Duncan Knight, Anthony Clark, Andrew Kirkpatrick +5 more | 2018-04-17 |
| 4820137 | Well pump | — | 1989-04-11 |
| 4462763 | Hydraulic pump jack | — | 1984-07-31 |