Dickson; Rennie L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Dickson; Rennie L..The latest application filed is for "flapper valve assembly apparatus and method".
- Dickson; Rennie L. - Carrollton TX
| Patent | Date |
|---|---|
| Flapper valve assembly apparatus and method Grant 6,394,187 - Dickson , et al. May 28, 2 | 2002-05-28 |
| System and method for communication hydraulic control to a wireline retrievable downhole device Grant 6,352,118 - Dickson , et al. March 5, 2 | 2002-03-05 |
| Linear indexing apparatus and methods of using same Grant 6,119,783 - Parker , et al. September 19, 2 | 2000-09-19 |
| Balanced line tubing retrievable safety valve Grant 6,003,605 - Dickson , et al. December 21, 1 | 1999-12-21 |
| Static wellhead plug and associated methods of plugging wellheads Grant 5,875,851 - Vick, Jr. , et al. March 2, 1 | 1999-03-02 |
| Linear indexing apparatus and methods of using same Grant 5,826,661 - Parker , et al. October 27, 1 | 1998-10-27 |
| Streamlined flapper valve Grant 5,323,859 - Smith , et al. * June 28, 1 | 1994-06-28 |
| Perforating type lockout tool Grant 5,249,630 - Meaders , et al. October 5, 1 | 1993-10-05 |
| Valve with pressure assisted closing system Grant 5,179,973 - Dickson , et al. January 19, 1 | 1993-01-19 |
| Streamlined flapper valve Grant 5,137,089 - Smith , et al. August 11, 1 | 1992-08-11 |
| Lockout housing and sleeve for safety valve Grant 5,127,476 - Dickson , et al. July 7, 1 | 1992-07-07 |
| Valve Grant 5,050,839 - Dickson , et al. September 24, 1 | 1991-09-24 |
| Surface controlled subsurface safety valve Grant 4,945,993 - Dickson , et al. August 7, 1 | 1990-08-07 |
| Surface controlled subsurface safety valve Grant 4,723,606 - Vinzant , et al. February 9, 1 | 1988-02-09 |
| Submersible pump safety systems Grant 4,632,184 - Renfroe, Jr. , et al. December 30, 1 | 1986-12-30 |
| Subsurface safety valve with lock-open system Grant 4,624,315 - Dickson , et al. November 25, 1 | 1986-11-25 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 