Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11761302 | Apparatus and method for creating a fluid communication line in a downhole environment | Bartosz Krupski, Colin Scott Boyle | 2023-09-19 |
| 10221652 | Downhole ball valve | Peter Derek Walter Inglis, Ralph H. Echols | 2019-03-05 |
| 7758016 | Ball valve | James Crabb, Ronald George Taylor | 2010-07-20 |
| 6540025 | Hydraulically metered travel joint method | Phillip T. Thomas, Ralph H. Echols | 2003-04-01 |
| 6367552 | Hydraulically metered travel joint | Philip T. Thomas, Ralph H. Echols | 2002-04-09 |
| 6059041 | Apparatus and methods for achieving lock-out of a downhole tool | — | 2000-05-09 |
| 5865255 | Full bore nipple and associated lock mandrel therefor | Robert C. Hammett, David L. Reesing | 1999-02-02 |
| 4887317 | Cold weather system | James G. Phillips, James G. Phillips, Jr., Joanne Harlow | 1989-12-19 |
| 4843647 | Cold weather system | James G. Phillips, James G. Phillips, Jr., Joanne Harlow | 1989-07-04 |
| 4787105 | Sleeping bag with snorkel hood and draft curtain | James G. Phillips | 1988-11-29 |