RICHARDSON; Allan S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for RICHARDSON; Allan S..The latest application filed is for "continuous drilling system".
- RICHARDSON; Allan S. - The Woodlands TX
- Richardson; Allan S. - Spring TX
- Richardson; Allan S. - Calgary CA
- Richardson; Allan S. - SE. Calgary Alberta CA
| Patent | Date |
|---|---|
| Continuous Drilling System App 20190128076 - RICHARDSON; Allan S. | 2019-05-02 |
| Continuous Drilling System App 20190078403 - RICHARDSON; Allan S. | 2019-03-14 |
| Drilling method and apparatus Grant RE44,973 - Richardson , et al. July 1, 2 | 2014-07-01 |
| Drilling method and apparatus Grant RE44,956 - Richardson , et al. June 24, 2 | 2014-06-24 |
| Quill saver sub Grant 7,543,650 - Richardson June 9, 2 | 2009-06-09 |
| Quill saver sub App 20070074874 - Richardson; Allan S. | 2007-04-05 |
| Top drive well casing system Grant 6,920,926 - York , et al. July 26, 2 | 2005-07-26 |
| Valve actuator Grant 6,840,493 - York , et al. January 11, 2 | 2005-01-11 |
| Top drive well casing system and method App 20040256110 - York, Lemuel T. ; et al. | 2004-12-23 |
| Top drive well casing system and method Grant 6,679,333 - York , et al. January 20, 2 | 2004-01-20 |
| Valve actuator App 20030189184 - York, Lemuel T. ; et al. | 2003-10-09 |
| Power tong wrench Grant 6,082,225 - Richardson July 4, 2 | 2000-07-04 |
| Portable top drive Grant 6,024,181 - Richardson , et al. February 15, 2 | 2000-02-15 |
| Backup tool and method for preventing rotation of a drill string Grant 5,785,132 - Richardson , et al. July 28, 1 | 1998-07-28 |
| Portable top drive Grant 5,755,296 - Richardson , et al. May 26, 1 | 1998-05-26 |
| Drilling rig Grant 5,251,709 - Richardson October 12, 1 | 1993-10-12 |
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