Hirth; David Eugene
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hirth; David Eugene.The latest application filed is for "packer with metal sealing element".
- Hirth; David Eugene - Pasadena TX
| Patent | Date |
|---|---|
| Packer with metal sealing element Grant 7,165,622 - Hirth , et al. January 23, 2 | 2007-01-23 |
| Packer with metal sealing element Grant 6,962,206 - Hirth , et al. November 8, 2 | 2005-11-08 |
| Packer with metal sealing element App 20050230100 - Hirth, David Eugene ; et al. | 2005-10-20 |
| Locking arrangement for a threaded connector Grant 6,908,121 - Hirth , et al. June 21, 2 | 2005-06-21 |
| Packer with metal sealing element App 20040226724 - Hirth, David Eugene ; et al. | 2004-11-18 |
| Ball dropping assembly Grant 6,715,541 - Pedersen , et al. April 6, 2 | 2004-04-06 |
| Plug-dropping container for releasing a plug into a wellbore Grant 6,672,384 - Pedersen , et al. January 6, 2 | 2004-01-06 |
| Ball dropping assembly App 20030155115 - Pedersen, Gerald Dean ; et al. | 2003-08-21 |
| Plug-dropping container for releasing a plug into a wellbore App 20030141052 - Pedersen, Gerald Dean ; et al. | 2003-07-31 |
| Locking arrangement for a threaded connector App 20030122373 - Hirth, David Eugene ; et al. | 2003-07-03 |
| Reduced-shock landing collar Grant 6,079,496 - Hirth June 27, 2 | 2000-06-27 |
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