Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646093 | Modified polygalactomannans as oil field shale inhibitors | — | 1997-07-08 |
| 5614473 | Use of high purity imidazoline based amphoacetate surfactant as foaming agent in oil wells | Anthony Homack | 1997-03-25 |