Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8047298 | Well tools utilizing swellable materials activated on demand | Alf Kolbjorn Sevre, Mark D. Kalman | 2011-11-01 |
| 7866408 | Well tool including swellable material and integrated fluid for initiating swelling | David B. Allison, Alan B. Webb, Steven G. Streich, Christopher J. Chalker | 2011-01-11 |