Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7426938 | Choke valve flow trim for fracture prevention | Larry J. Bohaychuk, Patrick Rabby, Chad Dannish | 2008-09-23 |
| 6648070 | Insert assembly for a wellhead choke valve | Harry Richard Cove | 2003-11-18 |