Vann; Roy R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Vann; Roy R..The latest application filed is for "gas assisted lift system".
- Vann; Roy R. - Tyler TX
- Vann; Roy R. - Flint TX
- Vann; Roy R. - DeQueen AR
- Vann; Roy R. - Houston TX
- Vann; Roy R. - Katy TX
- Vann; Roy R. - Odessa TX
- Vann; Roy R. - Artesia NM
- Vann; Roy R. - Midland TX
Trademarks
| Patent | Date |
|---|---|
| Gas assisted lift system Grant 8,678,095 - Morrison , et al. March 25, 2 | 2014-03-25 |
| Gas assisted lift system App 20110192590 - Morrison; James C. ; et al. | 2011-08-11 |
| Gas assisted lift system Grant 7,703,536 - Vann April 27, 2 | 2010-04-27 |
| Gas assisted lift system App 20080257547 - Vann; Roy R. | 2008-10-23 |
| Method for using a reciprocating pump vent-dump valve Grant 6,857,477 - Vann February 22, 2 | 2005-02-22 |
| Method for using a reciprocating pump vent-dump valve App 20040163815 - Vann, Roy R. | 2004-08-26 |
| Reciprocating pump dump valve App 20040055743 - Vann, Roy R. | 2004-03-25 |
| Reciprocating pump dump valve and methods of use Grant 6,672,393 - Vann January 6, 2 | 2004-01-06 |
| Reciprocating pump vent-dump valve and methods of use Grant 6,666,270 - Vann December 23, 2 | 2003-12-23 |
| Reciprocating pump vent-dump valve and methods of use App 20030159831 - Vann, Roy R. | 2003-08-28 |
| Reciprocating pump dump valve and methods of use App 20030159830 - Vann, Roy R. | 2003-08-28 |
| Cable actuated downhole smart pump Grant 6,497,281 - Vann December 24, 2 | 2002-12-24 |
| Reciprocating pump standing head valve Grant 6,382,244 - Vann May 7, 2 | 2002-05-07 |
| Reciprocating pump standing head valve App 20020014268 - Vann, Roy R. | 2002-02-07 |
| Cable actuated downhole smart pump App 20020007952 - Vann, Roy R. | 2002-01-24 |
| Accelerated downhole pressure testing Grant RE32,755 - Vann September 27, 1 | 1988-09-27 |
| Perforating gun charge carrier improvements Grant 4,598,775 - Vann , et al. July 8, 1 | 1986-07-08 |
| Well completion method and apparatus Grant 4,564,076 - Vann , et al. January 14, 1 | 1986-01-14 |
| Hold down apparatus for wireline operated gun Grant 4,554,975 - Vann , et al. November 26, 1 | 1985-11-26 |
| Bar actuated vent assembly Grant 4,512,406 - Vann , et al. April 23, 1 | 1985-04-23 |
| Ball switch device and method Grant 4,499,951 - Vann February 19, 1 | 1985-02-19 |
| Well completion method and apparatus Grant 4,484,632 - Vann November 27, 1 | 1984-11-27 |
| Accelerated downhole pressure testing Grant 4,480,690 - Vann November 6, 1 | 1984-11-06 |
| Continuous borehole formed horizontally through a hydrocarbon producing formation Grant 4,445,574 - Vann * May 1, 1 | 1984-05-01 |
| Pressure actuated vent assembly for slanted wellbores Grant 4,434,854 - Vann , et al. * March 6, 1 | 1984-03-06 |
| Bar actuated vent assembly and perforating gun Grant 4,299,287 - Vann , et al. November 10, 1 | 1981-11-10 |
| Method and apparatus for completing a slanted wellbore Grant 4,269,278 - Vann May 26, 1 | 1981-05-26 |
| Method and apparatus for completing a slanted wellbore Grant 4,194,577 - Vann March 25, 1 | 1980-03-25 |
| Vent assembly Grant 4,151,880 - Vann May 1, 1 | 1979-05-01 |
| High density jet perforating casing gun Grant 4,140,188 - Vann February 20, 1 | 1979-02-20 |
| Method and apparatus for isolating and treating subsurface stratas Grant 4,125,159 - Vann November 14, 1 | 1978-11-14 |
| Positive tubing release coupling Grant 4,066,282 - Vann January 3, 1 | 1978-01-03 |
| Optional fire and release tool and method Grant 4,040,482 - Vann August 9, 1 | 1977-08-09 |
| Sand consolidation method Grant 4,009,757 - Vann March 1, 1 | 1977-03-01 |
| High temperature perforating apparatus Grant 3,990,507 - Vann November 9, 1 | 1976-11-09 |
| Downhole packer actuated vent assembly Grant 3,931,855 - Vann , et al. January 13, 1 | 1976-01-13 |
| Packer actuated vent assembly Grant 3,871,448 - Vann , et al. March 18, 1 | 1975-03-18 |
| Switch Means For Actuating Downhole Devices Grant 3,758,731 - Vann , et al. September 11, 1 | 1973-09-11 |
| Downhole Recorder Device For Logging Boreholes Grant 3,713,334 - Vann , et al. January 30, 1 | 1973-01-30 |
| Tubing Conveyed Permanent Completion Method And Device Grant 3,706,344 - Vann December 19, 1 | 1972-12-19 |
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