Ferrell; Howard H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ferrell; Howard H..The latest application filed is for "method and apparatus for detecting formation hydrocarbons in mud returns, and the like".
- Ferrell; Howard H. - Tulsa OK
- Ferrell; Howard H. - Ponca City OK
| Patent | Date |
|---|---|
| Method and apparatus for detecting formation hydrocarbons in mud returns, and the like Grant 4,833,915 - Radd , et al. May 30, 1 | 1989-05-30 |
| Polymer flood filtration improvement Grant 4,212,748 - Ferrell , et al. July 15, 1 | 1980-07-15 |
| Method and apparatus for automatic control of filtrate quality Grant 4,107,037 - Cavanaugh , et al. August 15, 1 | 1978-08-15 |
| Subsurface transient pressure testing apparatus and method of use thereof Grant 3,965,978 - Conley , et al. June 29, 1 | 1976-06-29 |
| Process For Simultaneously Increasing Recovery And Upgrading Oil In A Reservoir Grant 3,809,159 - Young , et al. May 7, 1 | 1974-05-07 |
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