Head; Philip F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Head; Philip F..The latest application filed is for "method of abandoning a well and apparatus therefor".
- Head; Philip F. - London W9 1LQ GB2
- Head; Philip F. - London GB3
| Patent | Date |
|---|---|
| Method of abandoning a well and apparatus therefor Grant 5,472,052 - Head December 5, 1 | 1995-12-05 |
| Directional drilling tool Grant 5,441,119 - Head August 15, 1 | 1995-08-15 |
| Well packer Grant 5,327,962 - Head July 12, 1 | 1994-07-12 |
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