Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4741884 | Process and apparatus for removing H.sub.2 S from gas streams | Cecil O. Carter | 1988-05-03 |
| 4406868 | Process and apparatus for removing H.sub.2 S from gas streams | Cecil O. Carter | 1983-09-27 |
| 4368111 | Oil recovery from tar sands | James M. Siefkin | 1983-01-11 |
| 4298456 | Oil purification by deasphalting and magneto-filtration | Daniel Coombs | 1981-11-03 |