Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5797456 | Surfactant additive for oil field acidizing | — | 1998-08-25 |
| 5587498 | Method for amide preparation | James A. Krogh, B. Brian Smith | 1996-12-24 |
| 5543387 | Surfactant additive for oilfield acidizing | Charles E. Strubelt, Dennis A. Williams, Kenneth M. Webber | 1996-08-06 |
| 5264006 | Guerbet alkyl ether mono amines | Alan M. Schilowitz, James A. Krogh, J. Michael Clumpner, Paul J. Berlowitz | 1993-11-23 |
| 5094667 | Guerbet alkyl ether mono amines | Alan M. Schilowitz, James A. Krogh, J. Michael Clumpner, Paul J. Berlowitz | 1992-03-10 |