Laurel; David F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Laurel; David F..The latest application filed is for "quick connect coupling for cementing operations and the like".
- Laurel; David F. - Cypress TX US
- Laurel; David F. - Duncan OK
| Patent | Date |
|---|---|
| Quick connect coupling for cementing operations and the like Grant 9,051,787 - Laurel , et al. June 9, 2 | 2015-06-09 |
| Quick Connect Coupling for Cementing Operations and the Like App 20130284457 - Laurel; David F. ; et al. | 2013-10-31 |
| Valve assembly for use in a wellbore Grant 6,666,273 - Laurel December 23, 2 | 2003-12-23 |
| Valve Assembly For Use In A Wellbore App 20030209350 - Laurel, David F. | 2003-11-13 |
| Flow actuated valve for use in a wellbore Grant 6,622,795 - Hebert , et al. September 23, 2 | 2003-09-23 |
| Method and multi-purpose apparatus for control of fluid in wellbore casing Grant 6,571,880 - Butterfield, Jr. , et al. June 3, 2 | 2003-06-03 |
| Flow actuated valve for use in a wellbore App 20030098163 - Hebert, John E. ; et al. | 2003-05-29 |
| Method and apparatus for placing and cementing casing in horizontal wells Grant 5,829,526 - Rogers , et al. November 3, 1 | 1998-11-03 |
| Subsurface release cementing plug apparatus and methods Grant 5,762,139 - Sullaway , et al. June 9, 1 | 1998-06-09 |
| Ball drop head with rotating rings Grant 5,758,726 - Streich , et al. June 2, 1 | 1998-06-02 |
| Well cementing plug assemblies and methods Grant 5,722,491 - Sullaway , et al. March 3, 1 | 1998-03-03 |
| Inflation packer method and apparatus Grant 5,718,292 - Heathman , et al. February 17, 1 | 1998-02-17 |
| Drillable whipstock Grant 5,544,704 - Laurel , et al. August 13, 1 | 1996-08-13 |
| Sub-surface release plug assembly with non-metallic components Grant 5,413,172 - Laurel May 9, 1 | 1995-05-09 |
| Sub-surface release plug assembly with primary and secondary release mechanisms Grant 5,392,852 - Laurel , et al. February 28, 1 | 1995-02-28 |
| Hydrant and components thereof Grant 4,791,952 - Laurel December 20, 1 | 1988-12-20 |
| Hydrant and components thereof Grant 4,790,341 - Laurel December 13, 1 | 1988-12-13 |
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