Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900445 | Low pressure hydrocyclone separator | David A. Flanigan, Elwyn Shimoda | 1990-02-13 |
| 4844817 | Low pressure hydrocyclone separator | David A. Flanigan, Elwyn Shimoda | 1989-07-04 |
| 4527626 | Process and apparatus for removing dissolved oxygen | Lisa A. Cantu, Marvin E. Yost, Robert L. Coffee | 1985-07-09 |
| 4444260 | Oil solvation process for the treatment of oil contaminated sand | Phil A. Boyd | 1984-04-24 |