Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8664170 | Low temperature performance lubricating oil detergents and method of making the same | Curtis B. Campbell, Eugene E. Spala | 2014-03-04 |
| 8399388 | Low temperature performance lubricating oil detergents and method of making the same | Curtis B. Campbell, Eugene E. Spala | 2013-03-19 |
| 5246072 | Method for enhancing the recovery of petroleum from an oil-bearing formation using a mixture including anionic and cationic surfactants | Rawls Frazier, Donald L. Kuehne, Jeremy Cantor | 1993-09-21 |