Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9834404 | Method of making a downhole swellable seal with a passageway therethrough | Robert O. Castillo, Darwin D. Arline | 2017-12-05 |
| 8967245 | Borehole seal, backup and method | Amy L. Farrar, Edward T. Wood, Robert O. Castillo, Anthony P. Foster | 2015-03-03 |
| 8371374 | Sealing feed through lines for downhole swelling packers | Anthony P. Foster, Robert O. Castillo, Ammar A. Munshi, Edward T. Wood, Nervy Enrique Faria | 2013-02-12 |
| 8225861 | Sealing feed through lines for downhole swelling packers | Anthony P. Foster, Robert O. Castillo, Ammar A. Munshi, Edward T. Wood, Nervy Enrique Faria | 2012-07-24 |
| 7997338 | Sealing feed through lines for downhole swelling packers | Anthony P. Foster, Robert O. Castillo, Ammar A. Munshi, Edward T. Wood, Nervy Enrique Faria | 2011-08-16 |
| 7597152 | Swelling layer inflatable | Edward T. Wood | 2009-10-06 |
| 7552777 | Self-energized downhole tool | Douglas J. Murray, Vel Berzin, Edward T. Wood | 2009-06-30 |
| 7478678 | Time release downhole trigger | Amy L. Farrar, Douglas J. Murray | 2009-01-20 |