Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861351 | Production of hydrogen and carbon monoxide | David M. Nicholas, Jeffrey A. Hopkins | 1989-08-29 |
| 4846851 | Purification of ammonia syngas | David E. Guro, David M. Nicholas | 1989-07-11 |
| 4836833 | Production and recovery of hydrogen and carbon monoxide | David M. Nicholas, Stephen P. Goff, Thomas M. Roden | 1989-06-06 |