Jenkins; Cecil
Patent Applications and Registrations
Patent applications and USPTO patent grants for Jenkins; Cecil.The latest application filed is for "pipe moving apparatus and method".
- Jenkins; Cecil - Tulsa OK
| Patent | Date |
|---|---|
| Pipe moving apparatus and method Grant 4,834,604 - Brittain , et al. May 30, 1 | 1989-05-30 |
| Automated pipe racking apparatus Grant 4,725,179 - Woolslayer , et al. February 16, 1 | 1988-02-16 |
| Method and apparatus for raising and lowering a telescoping mast Grant 4,598,509 - Woolslayer , et al. July 8, 1 | 1986-07-08 |
| Method and apparatus for erecting a drilling rig mast Grant 4,587,778 - Woolslayer , et al. May 13, 1 | 1986-05-13 |
| Oil well drilling rig mover Grant 4,375,892 - Jenkins , et al. March 8, 1 | 1983-03-08 |
| Floor level pipe handling apparatus Grant 4,172,684 - Jenkins October 30, 1 | 1979-10-30 |
| Movable working platform for use in racking drill pipe Grant 4,163,625 - Jenkins August 7, 1 | 1979-08-07 |
| Pipe rack with pivoted fingers and screw conveyors Grant 3,986,618 - Woolslayer , et al. October 19, 1 | 1976-10-19 |
| Pipe rack with pivoted fingers Grant 3,978,994 - Woolslayer , et al. September 7, 1 | 1976-09-07 |
| Pipe racker Grant 3,887,086 - Woolslayer , et al. June 3, 1 | 1975-06-03 |
| Pivoted Well Drilling Mast And Separate Tower Grant 3,851,770 - Jenkins , et al. December 3, 1 | 1974-12-03 |
| Oil Well Drilling Apparatus Grant 3,807,109 - Jenkins , et al. April 30, 1 | 1974-04-30 |
| Method Of Handling Drill Pipe Grant 3,716,155 - Woolslayer , et al. February 13, 1 | 1973-02-13 |
| Horizontally Moving Pipe Rack Grant 3,701,435 - Woolslayer , et al. October 31, 1 | 1972-10-31 |
| Apparatus For Moving Drill Pipe Into And Out Of An Oil Well Derrick Grant 3,633,771 - Woolslayer , et al. January 11, 1 | 1972-01-11 |
| Method And Apparatus For Handling Drill Pipe Grant 3,613,905 - Woolslayer , et al. October 19, 1 | 1971-10-19 |
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.
| 