Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7644784 | Transport watercraft | — | 2010-01-12 |
| 7584809 | Mobile transport rig with four axels | — | 2009-09-08 |
| 7584810 | Top drive power swivel assembly | Thomas Nelson McKnight, Jr. | 2009-09-08 |
| 7537066 | Automatic driller | Andrew Weddle | 2009-05-26 |
| 7493970 | Shock mounted top drive | Thomas Nelson McKnight, Jr., Jerald Craig Briske | 2009-02-24 |
| 7197963 | Apparatus for clamping a drilling tubular against rotation | — | 2007-04-03 |
| 7178788 | Even reeving system for a top drive earth drilling machine | Thomas Nelson McKnight, Jr. | 2007-02-20 |
| 5885351 | Tribocharge applicator device | Lloyd Bryan Long, Jerry Don Bales, Wesley Hamilton Wagner | 1999-03-23 |
| 5033861 | Rotary extruder with internally heated rotor | Granville J. Hahn | 1991-07-23 |
| 4887907 | Rotary extruder with internally cooled rotor | Granville J. Hahn | 1989-12-19 |