Burr; Bruce Hawley
Patent Applications and Registrations
Patent applications and USPTO patent grants for Burr; Bruce Hawley.The latest application filed is for "drill bit seal and method of using same".
- Burr; Bruce Hawley - Willis TX
- Burr; Bruce Hawley - Houston TX
| Patent | Date |
|---|---|
| Drill bit seal and method of using same Grant 10,161,190 - Burr Dec | 2018-12-25 |
| Drill Bit Seal And Method Of Using Same App 20160340980 - Burr; Bruce Hawley | 2016-11-24 |
| Single energizer face seal for rocks bits with floating journal bearings Grant 6,247,545 - Burr , et al. June 19, 2 | 2001-06-19 |
| Rock bit face seal having anti-rotation pins Grant 6,176,330 - Burr January 23, 2 | 2001-01-23 |
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