Keith; Carl W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Keith; Carl W..The latest application filed is for "drill out bi-center bit and method for using same".
- Keith; Carl W. - Houston TX
- Keith; Carl W. - Spring TX
| Patent | Date |
|---|---|
| Fixed cutter drill bit Grant 7,726,415 - Tipton , et al. June 1, 2 | 2010-06-01 |
| Drill out bi-center bit and method for using same Grant 6,926,099 - Thigpen , et al. August 9, 2 | 2005-08-09 |
| Drill bit with large inserts Grant 6,918,455 - Meyers , et al. July 19, 2 | 2005-07-19 |
| Low-contact area cutting element Grant 6,904,983 - Thigpen , et al. June 14, 2 | 2005-06-14 |
| Drill out bi-center bit and method for using same App 20040188149 - Thigpen, Gary M. ; et al. | 2004-09-30 |
| Low-contact area cutting element App 20040149495 - Thigpen, Gary M. ; et al. | 2004-08-05 |
| Drag-type casing mill/drill bit Grant 6,568,492 - Thigpen , et al. May 27, 2 | 2003-05-27 |
| Mill/drill bit App 20020121393 - Thigpen, Gary M. ; et al. | 2002-09-05 |
| Drill Bit With Large Inserts App 20010047890 - MEYERS, JOHN ADAMS ; et al. | 2001-12-06 |
| Drill bit with rows of cutters mounted to present a serrated cutting edge Grant 6,164,394 - Mensa-Wilmot , et al. December 26, 2 | 2000-12-26 |
| PDC cutter element having improved substrate configuration Grant 6,148,937 - Mensa-Wilmot , et al. November 21, 2 | 2000-11-21 |
| Drill bits with predictable walk tendencies Grant 5,937,958 - Mensa-Wilmot , et al. August 17, 1 | 1999-08-17 |
| PDC cutter element having improved substrate configuration Grant 5,906,246 - Mensa-Wilmot , et al. May 25, 1 | 1999-05-25 |
| Brazing receptacle for improved PCD cutter retention Grant 5,737,980 - Keith , et al. April 14, 1 | 1998-04-14 |
| Stability enhanced drill bit and cutting structure having zones of varying wear resistance Grant 5,607,024 - Keith , et al. March 4, 1 | 1997-03-04 |
| Drill bit and cutting structure having enhanced placement and sizing of cutters for improved bit stabilization Grant 5,607,025 - Mensa-Wilmot , et al. March 4, 1 | 1997-03-04 |
| Drill bit having enhanced cutting structure and stabilizing features Grant 5,582,261 - Keith , et al. December 10, 1 | 1996-12-10 |
| Drill bit having stability enhancing cutting structure Grant 5,551,522 - Keith , et al. September 3, 1 | 1996-09-03 |
| Drill bit with performance-improving cutting structure Grant 5,549,171 - Mensa-Wilmot , et al. August 27, 1 | 1996-08-27 |
| Drill bit with improved insert cutter pattern and method of drilling Grant 5,346,025 - Keith , et al. * September 13, 1 | 1994-09-13 |
| Drill bit with improved insert cutter pattern Grant 5,265,685 - Keith , et al. November 30, 1 | 1993-11-30 |
| Drill bit with vibration stabilizers Grant 5,090,492 - Keith February 25, 1 | 1992-02-25 |
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