Nivens; Harold W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nivens; Harold W..The latest application filed is for "hydraulic lockout device for pressure controlled well tools".
- Nivens; Harold W. - Runaway TX
- Nivens; Harold W. - Decatur TX
- Nivens; Harold W. - Runaway Bay TX
| Patent | Date |
|---|---|
| Shear activated safety valve system Grant 8,118,088 - Wright , et al. February 21, 2 | 2012-02-21 |
| Hydraulic lockout device for pressure controlled well tools Grant 7,926,575 - Ringgenberg , et al. April 19, 2 | 2011-04-19 |
| Hydraulic Lockout Device for Pressure Controlled Well Tools App 20100200245 - Ringgenberg; Paul D. ; et al. | 2010-08-12 |
| Shear Activated Safety Valve System App 20090321088 - Wright; Adam D. ; et al. | 2009-12-31 |
| Shear activated safety valve system Grant 7,624,792 - Wright , et al. December 1, 2 | 2009-12-01 |
| Big bore transceiver Grant 7,301,472 - Kyle , et al. November 27, 2 | 2007-11-27 |
| System and method for fail-safe disconnect from a subsea well Grant 7,240,734 - Nivens , et al. July 10, 2 | 2007-07-10 |
| System and method for fail-safe disconnect from a subsea well Grant 7,234,527 - Nivens , et al. June 26, 2 | 2007-06-26 |
| Shear activated safety valve system App 20070084607 - Wright; Adam D. ; et al. | 2007-04-19 |
| System and method for fail-safe disconnect from a subsea well App 20050126789 - Nivens, Harold W. ; et al. | 2005-06-16 |
| Methods of downhole testing subterranean formations and associated apparatus therefor Grant 6,729,398 - Ringgenberg , et al. May 4, 2 | 2004-05-04 |
| Big bore transceiver App 20040047235 - Kyle, Donald G. ; et al. | 2004-03-11 |
| System and method for fail-safe disconnect from a subsea well App 20040003926 - Nivens, Harold W. ; et al. | 2004-01-08 |
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