Houlgrave; Robert C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Houlgrave; Robert C..The latest application filed is for "device to orient electrical connectors in a subsea well".
- Houlgrave; Robert C. - Houston TX
| Patent | Date |
|---|---|
| Device to orient electrical connectors in a subsea well Grant 4,770,248 - Houlgrave , et al. September 13, 1 | 1988-09-13 |
| Subsea flowline quick disconnect coupling Grant 4,721,132 - Houlgrave January 26, 1 | 1988-01-26 |
| Integral buoyant riser Grant 4,648,747 - Watkins , et al. March 10, 1 | 1987-03-10 |
| Expanding gate valve having mechanically secured seats Grant 4,258,743 - Dare , et al. March 31, 1 | 1981-03-31 |
| Metallic seat construction for valves Grant 4,124,194 - Alvarez , et al. November 7, 1 | 1978-11-07 |
| Limited float seat construction for expanding gate valve Grant 4,116,419 - Diehl , et al. September 26, 1 | 1978-09-26 |
| Actuator for expanding gate valves Grant 4,103,863 - Houlgrave , et al. August 1, 1 | 1978-08-01 |
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