Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7600572 | Drillable bridge plug | Gabriel Slup, Douglas J. Lehr, Tommy J. Allen, Blake Cox, Samuel Mark Zimmerman | 2009-10-13 |
| 7255178 | Drillable bridge plug | Gabriel Slup, Douglas J. Lehr, Hubert Garrison, Tommy J. Allen, Blake Cox +1 more | 2007-08-14 |