Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877514 | Carbo-metallic oil conversion process and catalysts | H. Wayne Beck | 1989-10-31 |
| 4869879 | Vented riser for stripping spent catalyst | — | 1989-09-26 |
| 4869880 | Apparatus for the separation of solid particulates from a gaseous effluent | Steven W. Murray, Ricky L. Adkins, Billy T. Fritz, James R. Riggs, Paul W. Walters | 1989-09-26 |
| 4816195 | Process of making a loosely formed non-woven mat of aligned carbon fibers | Larry D. Veneziano | 1989-03-28 |