Huddleston; David A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Huddleston; David A..The latest application filed is for "sulfonated and carboxylated aminoethylenephosphonic acid and aminobis (methylene) phosphinic acid".
- Huddleston; David A. - Sugar Land TX
- Huddleston; David A. - Sugarland TX
| Patent | Date |
|---|---|
| Sulfonated and carboxylated aminoethylenephosphonic acid and aminobis (methylene) phosphinic acid Grant 5,534,611 - Huddleston , et al. July 9, 1 | 1996-07-09 |
| Liquid aluminum phosphate salt gelling agent Grant 5,202,035 - Huddleston * April 13, 1 | 1993-04-13 |
| Method for reducing fluid loss from oilfield cement slurries using vinyl grafted wattle tannin Grant 5,147,964 - Huddleston , et al. * September 15, 1 | 1992-09-15 |
| Method for reducing fluid loss from oilfield cement slurries using vinyl grafted wattle tannin Grant 5,134,215 - Huddleston , et al. July 28, 1 | 1992-07-28 |
| Liquid aluminum phosphate salt gelling agent Grant 5,110,485 - Huddleston * May 5, 1 | 1992-05-05 |
| Hydrocarbon geller and method for making the same Grant 5,057,233 - Huddleston October 15, 1 | 1991-10-15 |
| Enzymatically degradable fluid loss additive Grant 5,032,297 - Williamson , et al. July 16, 1 | 1991-07-16 |
| Vinyl grafted lignite fluid loss additives Grant 5,028,271 - Huddleston , et al. July 2, 1 | 1991-07-02 |
| Vinyl grafted lignite fluid loss additives Grant 4,938,803 - Huddleston , et al. July 3, 1 | 1990-07-03 |
| Hydrocarbon geller and method for making the same Grant 4,877,894 - Huddleston October 31, 1 | 1989-10-31 |
| Hydrocarbon gellant Grant 4,781,845 - Syrinek , et al. November 1, 1 | 1988-11-01 |
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