Roberts; William M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roberts; William M..The latest application filed is for "retrievable downhole tool system".
- Roberts; William M. - Tulsa OK
- Roberts; William M. - Melbourne AR US
- Roberts; William M. - North Ferrisburgh VT
- Roberts; William M. - Tomball TX
- Roberts; William M. - Apopka FL
- Roberts; William M. - Deer Park TX
- Roberts; William M. - Houston TX
| Patent | Date |
|---|---|
| Retrievable downhole tool system Grant 9,845,651 - McCoy , et al. December 19, 2 | 2017-12-19 |
| Retrievable Downhole Tool System App 20150260008 - McCoy; Mark ; et al. | 2015-09-17 |
| Lock mechanism for downhole tools App 20130341049 - Roberts; William M. | 2013-12-26 |
| Manufacturing Technique for a Composite Ball for Use Downhole in a Hydrocarbon Wellbore App 20130098600 - Roberts; William M. | 2013-04-25 |
| Fluid level measuring device Grant 8,424,381 - Lamphere , et al. April 23, 2 | 2013-04-23 |
| Ball seat sub Grant 8,074,718 - Roberts December 13, 2 | 2011-12-13 |
| Drillable bridge plug Grant 8,047,280 - Tran , et al. November 1, 2 | 2011-11-01 |
| Drillable bridge plug Grant 7,980,300 - Roberts , et al. July 19, 2 | 2011-07-19 |
| Drillable Bridge Plug App 20100326650 - Tran; Lap T. ; et al. | 2010-12-30 |
| Drillable bridge plug Grant 7,810,558 - Shkurti , et al. October 12, 2 | 2010-10-12 |
| Ball Seat Sub App 20100084146 - Roberts; William M. | 2010-04-08 |
| Permanent anchoring device Grant 7,665,516 - Roberts , et al. February 23, 2 | 2010-02-23 |
| Drillable Bridge Plug App 20080308266 - Roberts; William M. ; et al. | 2008-12-18 |
| Secondary lock for a downhole tool Grant 7,455,118 - Roberts , et al. November 25, 2 | 2008-11-25 |
| Permanent Anchoring Device App 20080264627 - Roberts; William M. ; et al. | 2008-10-30 |
| Drillable bridge plug Grant 7,424,909 - Roberts , et al. September 16, 2 | 2008-09-16 |
| Drillable Bridge Plug App 20080190600 - Shkurti; Piro ; et al. | 2008-08-14 |
| Mill and pump-off sub Grant 7,325,631 - Roberts , et al. February 5, 2 | 2008-02-05 |
| Secondary lock for a downhole tool App 20070227745 - Roberts; William M. ; et al. | 2007-10-04 |
| Torsional resistant slip mechanism and method Grant 7,216,700 - Roberts May 15, 2 | 2007-05-15 |
| Mill and pump-off sub App 20070023188 - Roberts; William M. ; et al. | 2007-02-01 |
| Drillable bridge plug App 20050189103 - Roberts, William M. ; et al. | 2005-09-01 |
| Torsional resistant slip mechanism and method App 20030150607 - Roberts, William M. | 2003-08-14 |
| Multiple mode laser Grant 6,580,732 - Guch, Jr. , et al. June 17, 2 | 2003-06-17 |
| Tubing shut off valve Grant 4,325,434 - Roberts April 20, 1 | 1982-04-20 |
| Pilot valve for subsea test valve system for deep water Grant 4,325,409 - Roberts April 20, 1 | 1982-04-20 |
| Apparatus for selective disengagement of a fluid transmission conduit and for control of fluid transmission from a well zone Grant 4,270,606 - McStravick , et al. June 2, 1 | 1981-06-02 |
| Removable subsea test valve system for deep water Grant 4,234,043 - Roberts November 18, 1 | 1980-11-18 |
| Valve apparatus Grant 4,210,207 - McStravick , et al. July 1, 1 | 1980-07-01 |
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