Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9051810 | Frac valve with ported sleeve | John Michael Cuffe, Keith B. Willhelm | 2015-06-09 |
| 8757265 | Frac valve | John Michael Cuffe | 2014-06-24 |
| 8727026 | Dual isolation mechanism of cementation port | Rebecca Caldwell | 2014-05-20 |
| 7104322 | Open hole anchor and associated method | Ken Whanger, Simon J. Harrall, Robert P. Badrak | 2006-09-12 |
| 7070001 | Expandable sealing apparatus | Ken Whanger, John C. Vicic, Clayton Plucheck, Patrick Maguire | 2006-07-04 |
| 6907937 | Expandable sealing apparatus | Ken Whanger, John C. Vicic, Clayton Plucheck, Patrick Maguire | 2005-06-21 |