Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7591321 | Zonal isolation tools and methods of use | John R. Whitsitt, Carlos Araque, David Milton Eslinger, Philippe Gambier, Dinesh R. Patel +5 more | 2009-09-22 | $149,171,000 |
| 6892820 | Modular retrievable packer | Jason Bigelow, Mark Mulligan, David Wolfe | 2005-05-17 | $32,876,000 |