Rickabaugh; Caleb A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Rickabaugh; Caleb A..The latest application filed is for "tungsten carbide bit with hardfaced nose area".
- Rickabaugh; Caleb A. - Spring TX
| Patent | Date |
|---|---|
| Tungsten Carbide Bit with Hardfaced Nose Area App 20110168452 - Pharis; Robert J. ; et al. | 2011-07-14 |
| Bit leg outer surface hardfacing on earth-boring bit Grant 7,484,577 - Overstreet , et al. February 3, 2 | 2009-02-03 |
| Bit leg outer surface hardfacing on earth-boring bit App 20070163812 - Overstreet; James L. ; et al. | 2007-07-19 |
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