Cawthorne; Chris E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cawthorne; Chris E..The latest application filed is for "shaped inserts with increased retention force".
- Cawthorne; Chris E. - The Woodlands TX
- Cawthorne; Chris E. - Orange CA
| Patent | Date |
|---|---|
| Shaped inserts with increased retention force Grant 7,416,035 - Viswanadham , et al. August 26, 2 | 2008-08-26 |
| Shaped inserts with increased retention force App 20050067196 - Viswanadham, Ramamurthy ; et al. | 2005-03-31 |
| Cutter element with non-linear, expanded crest Grant 6,782,959 - Minikus , et al. August 31, 2 | 2004-08-31 |
| Cutter element with non-linear, expanded crest App 20030188896 - Minikus, James C. ; et al. | 2003-10-09 |
| Directional flow nozzle retention body Grant 6,571,887 - Nguyen , et al. June 3, 2 | 2003-06-03 |
| Method for simulating drilling of roller cone bits and its application to roller cone bit design and performance Grant 6,516,293 - Huang , et al. February 4, 2 | 2003-02-04 |
| Engineered enhanced inserts for rock drilling bits Grant 6,484,826 - Anderson , et al. November 26, 2 | 2002-11-26 |
| Engineered enhanced inserts for rock drilling bits Grant 6,460,637 - Siracki , et al. October 8, 2 | 2002-10-08 |
| Drill bit inserts with variations in thickness of diamond coating Grant 6,460,636 - Yong , et al. October 8, 2 | 2002-10-08 |
| Cutter element with non-linear, expanded crest App 20010025728 - Minikus, James C. ; et al. | 2001-10-04 |
| Engineered enhanced inserts for rock drilling bits Grant 6,199,645 - Anderson , et al. March 13, 2 | 2001-03-13 |
| Dual functioning seal for rock bits Grant 6,179,296 - Cawthorne , et al. January 30, 2 | 2001-01-30 |
| Dual functioning seal for rock bits Grant 6,170,830 - Cawthorne , et al. January 9, 2 | 2001-01-09 |
| Composite earth boring bit seal Grant 6,123,337 - Fang , et al. September 26, 2 | 2000-09-26 |
| Dual functioning seal for rock bits Grant 5,842,701 - Cawthorne , et al. December 1, 1 | 1998-12-01 |
| Rolling cone steel tooth bit with enhancements in cutter shape and placement Grant 5,839,526 - Cisneros , et al. November 24, 1 | 1998-11-24 |
| Rock bit Grant 5,485,890 - Cawthorne , et al. January 23, 1 | 1996-01-23 |
| Ultra hard insert cutters for heel row rotary cone rock bit applications Grant 5,351,770 - Cawthorne , et al. October 4, 1 | 1994-10-04 |
| Ultra hard insert cutters for heel row rotary cone rock bit applications Grant 5,341,890 - Cawthorne , et al. August 30, 1 | 1994-08-30 |
| Radial crest insert Grant 5,172,779 - Siracki , et al. December 22, 1 | 1992-12-22 |
| Inclined chisel inserts for rock bits Grant 4,832,139 - Minikus , et al. May 23, 1 | 1989-05-23 |
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