Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4402346 | Crude oil pipe having layers of graduated permeability to hydrogen sulfide | Ivan C. Cheetham, Glyn H. Redmond | 1983-09-06 |
| 4213485 | Hose | Roger J. Ottewell | 1980-07-22 |