Efner; Howard F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Efner; Howard F..The latest application filed is for "use of butadiene-styrene copolymers in crude oils".
- Efner; Howard F. - Bartlesville OK
| Patent | Date |
|---|---|
| Use of butadiene-styrene copolymers in crude oils Grant 5,536,706 - Kallenbach , et al. July 16, 1 | 1996-07-16 |
| Oxidation of dimercaptans to organic disulfide polymers Grant 5,464,931 - Shaw , et al. November 7, 1 | 1995-11-07 |
| Continuous antimony pentoxide production Grant 5,213,785 - Fentress , et al. May 25, 1 | 1993-05-25 |
| Polyethylene terephthalate molding compounds with sodium stearate and polyester amides Grant 5,028,649 - Efner July 2, 1 | 1991-07-02 |
| Process for the preparation of promoted catalysts Grant 4,636,487 - Parrott , et al. January 13, 1 | 1987-01-13 |
| Hydrofining process for hydrocarbon containing feed streams Grant 4,612,110 - Kukes , et al. September 16, 1 | 1986-09-16 |
| Hydrofining process for hydrocarbon containing feed streams Grant 4,582,594 - Kukes , et al. April 15, 1 | 1986-04-15 |
| Hydrofining process for hydrocarbon containing feed streams Grant 4,560,468 - Kukes , et al. December 24, 1 | 1985-12-24 |
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