Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6932636 | Electrical penetrator connector | Stephen Abbey, Robert Buchan | 2005-08-23 |
| 5044432 | Well pipe hanger with metal sealing annulus valve | Christopher E. Cunningham | 1991-09-03 |