Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9388663 | Downhole circulating valve having a metal-to-metal seal and method for operating same | Jimmie R. Williamson, Jr., Leo G. Collins, Russell Irving Bayh, III | 2016-07-12 |
| 8794638 | Sealing array for high temperature applications | Ira Gene Tuckness, Russell Irving Bayh, III | 2014-08-05 |
| 8763707 | Downhole circulating valve having a metal-to-metal seal | Jimmie R. Williamson, Jr., Leo G. Collins, Russell Irving Bayh, III | 2014-07-01 |
| 6116343 | One-trip well perforation/proppant fracturing apparatus and methods | Ronald van Petegem, Perry C. Shy | 2000-09-12 |
| 6076600 | Plug apparatus having a dispersible plug member and a fluid barrier | James Dan Vick, Jr., Ewan Ogilvie Robb | 2000-06-20 |
| 6026903 | Bidirectional disappearing plug | Perry C. Shy, John C. Gano, Michael P. Adams, James R. Longbottom, Bill W. Loughridge +1 more | 2000-02-22 |
| 5865255 | Full bore nipple and associated lock mandrel therefor | Robert C. Hammett, Gordon K. Scott | 1999-02-02 |
| 5865252 | One-trip well perforation/proppant fracturing apparatus and methods | Ron van Petegem, Perry C. Shy, Alan Tancel Jackson | 1999-02-02 |
| 5765641 | Bidirectional disappearing plug | Perry C. Shy, John C. Gano, Michael P. Adams, James R. Longbottom, Bill W. Loughridge +1 more | 1998-06-16 |
| 5613559 | Decentralizing centralizing locating and orienting subsystems and methods for subterranean multilateral well drilling and completion | Jimmie R. Williamson, Jr., John C. Gano | 1997-03-25 |
| 5566763 | Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion | Jimmie R. Williamson, Jr., John C. Gano | 1996-10-22 |
| 5492173 | Plug or lock for use in oil field tubular members and an operating system therefor | Marion D. Kilgore, Imre I. Gazda, John H. Yonker | 1996-02-20 |
| 5066060 | Running tool | Andrew G. Cooksey | 1991-11-19 |
| 4984631 | System and plug for plugging a conduit | — | 1991-01-15 |