Ashcraft, Jr.; Thomas L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ashcraft, Jr.; Thomas L..The latest application filed is for "technical pentaerythritol esters as lubricant base stock".
- Ashcraft, Jr.; Thomas L. - Cedar Park TX
- Ashcraft, Jr.; Thomas L. - Baytown TX
| Patent | Date |
|---|---|
| Technical pentaerythritol esters as lubricant base stock Grant 5,503,761 - Ashcraft, Jr. , et al. April 2, 1 | 1996-04-02 |
| Process for manufacturing disulfonate surfactants Grant 4,959,490 - Parnell , et al. September 25, 1 | 1990-09-25 |
| Oil recovery process using alkyl hydroxyaromatic dianionic surfactants as mobility control agents Grant 4,828,032 - Teletzke , et al. May 9, 1 | 1989-05-09 |
| Oil recovery method using a surfactant Grant 3,977,471 - Gale , et al. August 31, 1 | 1976-08-31 |
| Use of materials as waterflood additives Grant 3,946,812 - Gale , et al. March 30, 1 | 1976-03-30 |
| Use of materials as waterflood additives Grant 3,888,308 - Gale , et al. June 10, 1 | 1975-06-10 |
| Oil recovery process utilizing higher alkyl toluene sulfonate Grant 3,885,626 - Gale , et al. May 27, 1 | 1975-05-27 |
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