Terral; Ben D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Terral; Ben D..The latest application filed is for "combined well casing spider and elevator".
- Terral; Ben D. - Livingston TX
- Terral; Ben D. - Huntsville TX
- Terral; Ben D. - Houston TX
- Terral; Ben D. - Harris County TX
| Patent | Date |
|---|---|
| Combined well casing spider and elevator Grant 6,227,587 - Terral May 8, 2 | 2001-05-08 |
| Stacked water regulator and method of use Grant 5,042,584 - Terral August 27, 1 | 1991-08-27 |
| Side pocket mandrel system for dual chemical injection Grant 4,480,687 - Terral November 6, 1 | 1984-11-06 |
| Gas lift valve and method of presetting Grant 4,441,519 - Terral April 10, 1 | 1984-04-10 |
| Circulating valve for wells Grant 4,360,064 - O'Connor, III , et al. November 23, 1 | 1982-11-23 |
| Multiple flow valves and sidepocket mandrel Grant 4,239,082 - Terral December 16, 1 | 1980-12-16 |
| Multiple valve pocket mandrel and apparatus for installing and removing flow control devices therefrom Grant 3,874,445 - Terral April 1, 1 | 1975-04-01 |
| Sidepocket Mandrel Grant 3,741,299 - Terral June 26, 1 | 1973-06-26 |
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