Cohen; John H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cohen; John H..The latest application filed is for "riser restrictor device".
- Cohen; John H. - Houston TX
| Patent | Date |
|---|---|
| Riser restrictor device Grant 10,053,944 - Cohen August 21, 2 | 2018-08-21 |
| Riser Restrictor Device App 20160201426 - COHEN; John H. | 2016-07-14 |
| Method For Installing An External Line On A Deployed Drilling Riser App 20160168925 - Bors; Christian ; et al. | 2016-06-16 |
| Direct drive fluid pump for subsea mudlift pump drilling systems Grant 9,322,230 - Talamo , et al. April 26, 2 | 2016-04-26 |
| Direct Drive Fluid Pump for Subsea Mudlift Pump Drilling Systems App 20140102805 - Talamo; Emil R. ; et al. | 2014-04-17 |
| Method and apparatus for prevention, suppression or mitigation of explosions in confined subterranean chambers Grant 6,012,532 - Kiefer , et al. January 11, 2 | 2000-01-11 |
| Apparatus and method for shutting off fluid flow in a pipe main Grant 5,462,077 - Cohen , et al. October 31, 1 | 1995-10-31 |
| Steering system for percussion boring tools Grant 4,632,191 - McDonald , et al. December 30, 1 | 1986-12-30 |
| Percussion boring tool Grant 4,621,698 - Pittard , et al. November 11, 1 | 1986-11-11 |
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