Chenoweth; David V.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chenoweth; David V..The latest application filed is for "insulating tubular conduit apparatus".
- Chenoweth; David V. - Houston TX
- Chenoweth; David V. - Lahaina HI
- Chenoweth; David V. - Maui HI
- Chenoweth; David V. - Honolulu HI
| Patent | Date |
|---|---|
| Insulating tubular conduit apparatus Grant 4,624,485 - McStravick , et al. * November 25, 1 | 1986-11-25 |
| Plastically deformed seals in downhole tools Grant 4,582,349 - Chenoweth , et al. April 15, 1 | 1986-04-15 |
| Concentric walled conduit for a tubular conduit string Grant 4,566,495 - Baker , et al. January 28, 1 | 1986-01-28 |
| Gas well liquid removal system and process Grant 4,509,599 - Chenoweth , et al. April 9, 1 | 1985-04-09 |
| Insulating tubular conduit apparatus Grant 4,444,420 - McStravick , et al. * April 24, 1 | 1984-04-24 |
| Insulating tubular conduit apparatus and method Grant 4,396,211 - McStravick , et al. August 2, 1 | 1983-08-02 |
| Retrievable subsurface well tools Grant RE28,641 - Chenoweth December 9, 1 | 1975-12-09 |
| Fluid pressure locked well drilling tool Grant 3,912,026 - Crowe , et al. October 14, 1 | 1975-10-14 |
| Subsurface Fluid Pressure Reduction Drilling Apparatus Grant 3,648,786 - Chenoweth March 14, 1 | 1972-03-14 |
| Fluid-actuated Impact Apparatus Grant 3,568,783 - Chenoweth , et al. March 9, 1 | 1971-03-09 |
| Differential Pressure Gas Lift Valve Grant 3,559,672 - Chenoweth February 2, 1 | 1971-02-02 |
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