Kellner; Jackson M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kellner; Jackson M..The latest application filed is for "safety mechanism for a raise drill".
- Kellner; Jackson M. - Midland TX
| Patent | Date |
|---|---|
| Safety mechanism for a raise drill Grant 4,244,433 - Kellner January 13, 1 | 1981-01-13 |
| Drill fluid powered hydraulic system Grant 4,211,291 - Kellner July 8, 1 | 1980-07-08 |
| Raise drill inner yoke bridge Grant 4,142,593 - Dixon , et al. March 6, 1 | 1979-03-06 |
| Tandem eccentric roller stabilizer for earth boring apparatus Grant 4,102,552 - Kellner July 25, 1 | 1978-07-25 |
| Dual flow passage drill stem Grant 4,067,596 - Kellner , et al. January 10, 1 | 1978-01-10 |
| Drill director Grant 4,040,494 - Kellner August 9, 1 | 1977-08-09 |
| Drilling apparatus Grant 4,040,495 - Kellner , et al. August 9, 1 | 1977-08-09 |
| Drill director Grant 3,997,008 - Kellner December 14, 1 | 1976-12-14 |
| Floorlevel motion compensator Grant 3,917,006 - Kellner November 4, 1 | 1975-11-04 |
| Power Kelly Cock Grant 3,806,082 - Kellner April 23, 1 | 1974-04-23 |
| Force Applicator Grant 3,799,277 - Kellner March 26, 1 | 1974-03-26 |
| Self Guiding Force Applicator Grant 3,797,589 - Kellner , et al. March 19, 1 | 1974-03-19 |
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