Cochran; Chudleigh B.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cochran; Chudleigh B..The latest application filed is for "pipe insert assembly".
- Cochran; Chudleigh B. - Houston TX
| Patent | Date |
|---|---|
| Pipe insert assembly Grant 5,058,671 - Cochran October 22, 1 | 1991-10-22 |
| Double nut setting tool and linger hanger assembly Grant 5,048,612 - Cochran September 17, 1 | 1991-09-17 |
| Pressure operated circulation valve Grant 5,048,611 - Cochran September 17, 1 | 1991-09-17 |
| Well working rig Grant 4,267,675 - Cochran May 19, 1 | 1981-05-19 |
| Well tool with pressure responsive tightening means Grant 4,131,160 - Cochran December 26, 1 | 1978-12-26 |
| Swivel assembly Grant 4,030,546 - Rogers , et al. June 21, 1 | 1977-06-21 |
| Well packer Grant 4,018,274 - Cochran April 19, 1 | 1977-04-19 |
| Apparatus and method for cementing well liners Grant 3,934,652 - Cochran January 27, 1 | 1976-01-27 |
| Apparatus and method for cementing well liners Grant 3,910,349 - Brown , et al. October 7, 1 | 1975-10-07 |
| Method And Apparatus For Evacuating Drilling Fluids From A Well Grant 3,799,268 - Cochran March 26, 1 | 1974-03-26 |
| Well Packer Grant 3,658,127 - Cochran , et al. April 25, 1 | 1972-04-25 |
| Tool String Assembly For Use In Wells Grant 3,633,670 - Brown , et al. January 11, 1 | 1972-01-11 |
| Hydraulic Set Liner Hanger Grant 3,608,634 - Cochran September 28, 1 | 1971-09-28 |
| Anchor Assembly For Well Tools Such As Packers And The Like Grant 3,593,784 - Brown , et al. July 20, 1 | 1971-07-20 |
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