Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6120678 | Desalting adjunct chemistry | William K. Stephenson, Joe Scott Walker, Sheraldean A. Wolsey-Iverson | 2000-09-19 |
| 5269908 | Ammonium chloride deposit retardation in hydrocarbon streams by addition of inert gas | — | 1993-12-14 |
| 4837338 | Removal of impurities from n-methyl-pyrrolidone using highly pure water washed activated alumina | Lloyd E. Reid | 1989-06-06 |