Krehbiel; Delmar D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Krehbiel; Delmar D..The latest application filed is for "waterflooding method using overbased sulfonate".
- Krehbiel; Delmar D. - Lubbock TX
| Patent | Date |
|---|---|
| Waterflooding method using overbased sulfonate Grant 3,913,674 - Krehbiel , et al. October 21, 1 | 1975-10-21 |
| Overbased branched chain aliphatic sulfonate waterflood Grant 3,912,010 - Clark , et al. October 14, 1 | 1975-10-14 |
| Overbased branched chain aliphatic sulfonate waterflood additives Grant 3,865,735 - Clark , et al. February 11, 1 | 1975-02-11 |
| Method Of Using Overbased Sulfonate Water Flood Additive Derived From Heavy Coker Gas Oil Grant 3,804,170 - Krehbiel , et al. April 16, 1 | 1974-04-16 |
| Method For Recovering Hydrocarbons Using An Anionic Water Flood Additive Grant 3,804,171 - Krehbiel , et al. April 16, 1 | 1974-04-16 |
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