Woodward; Charles D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Woodward; Charles D..The latest application filed is for "high efficiency infrared source".
- Woodward; Charles D. - Stoughton WI
- Woodward; Charles D. - Houston TX
- Woodward; Charles D. - Saginaw MI
| Patent | Date |
|---|---|
| High efficiency infrared source Grant 5,291,022 - Drake , et al. March 1, 1 | 1994-03-01 |
| Heated multiple solvent method for recovering viscous petroleum Grant 4,007,785 - Allen , et al. * February 15, 1 | 1977-02-15 |
| Multiple solvent heavy oil recovery method Grant 3,954,141 - Allen , et al. May 4, 1 | 1976-05-04 |
| Method for recovering viscous petroleum Grant 3,905,422 - Woodward September 16, 1 | 1975-09-16 |
| Method for recovering viscous petroleum Grant 3,903,967 - Woodward September 9, 1 | 1975-09-09 |
| Recovery of viscous petroleum from asphaltic petroleum containing formations such as tar sand deposits Grant 3,874,452 - Allen , et al. April 1, 1 | 1975-04-01 |
| Air Pump Flow Control Valve For Engine Exhaust Emission Control System Grant 3,591,961 - Woodward , et al. July 13, 1 | 1971-07-13 |
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