Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818743 | Desulfurization catalyst and the catalyst prepared by a method | Howard D. Simpson, Kenneth Baron | 1989-04-04 |
| 4581129 | Hydrorefining with a regenerated catalyst | Richard Miller | 1986-04-08 |
| 4568449 | Hydrotreating catalyst and process | Paul K. Angmorter, Howard D. Simpson | 1986-02-04 |
| 4540483 | Hydrotreating process | Howard D. Simpson, Paul K. Angmorter | 1985-09-10 |
| 4513097 | Hydrotreating catalyst and a method for preparing the catalyst | Paul K. Angmorter, Howard D. Simpson | 1985-04-23 |
| 4500424 | Desulfurization catalyst and process | Howard D. Simpson, Kenneth Baron | 1985-02-19 |
| 4485183 | Regeneration and reactivation of deactivated hydrorefining catalyst | Richard Miller | 1984-11-27 |
| 4446248 | Hydrotreating catalyst | Howard D. Simpson | 1984-05-01 |
| 4376041 | Hydrotreating process | — | 1983-03-08 |
| 4317746 | Hydrotreating catalysts | — | 1982-03-02 |