Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5752995 | Catalyst and process for the production of hydrogen and/or methane | — | 1998-05-19 |
| 4917791 | Process and catalysts for hydroconversion of coal or petroleum asphaltene to distillate liquids | — | 1990-04-17 |
| 4424109 | Catalyst for coal liquefaction process | Derk T. A. Huibers | 1984-01-03 |