Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9810034 | Packer or bridge plug with sequential equalization then release movements | Jeffery Scott Pray, David S. Bishop, Kent S. Meyer, Graeme Michael Kelbie | 2017-11-07 |
| 9790768 | Apparatus to activate a downhole tool by way of electromagnets via wireline current | Philip M. Gregurek | 2017-10-17 |
| 9695666 | Packer or plug element backup ring with folding feature | Steve Rosenblatt | 2017-07-04 |
| 9670747 | Annulus sealing arrangement and method of sealing an annulus | — | 2017-06-06 |
| 9617825 | Packer or bridge plug backup release system of forcing a lower slip cone from a slip assembly | Jeffery Scott Pray, David S. Bishop | 2017-04-11 |
| 9416608 | Slip, tangential slip system having slip, and method thereof | — | 2016-08-16 |
| 8839874 | Packing element backup system | David S. Bishop, Douglas J. Lehr | 2014-09-23 |