Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9109612 | Sealed hydraulic tank system for mining shovel | Carl D. Gilmore, Robert Weber | 2015-08-18 |
| 8920104 | Hydraulic crowd system for electric mining shovel | Carl D. Gilmore, Robert Weber | 2014-12-30 |
| 7882906 | Up-down vibratory drilling and jarring tool | — | 2011-02-08 |
| 5158138 | Apparatus for shutting in a burning oil well | — | 1992-10-27 |
| 5121797 | Methods and apparatus for shutting in a burning oil well | — | 1992-06-16 |
| 4976314 | T-slot mandrel and kickover tool | William B. Crawford | 1990-12-11 |
| 4510797 | Full-bore drill stem testing apparatus with surface pressure readout | Shelby L. Guidry | 1985-04-16 |