Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338716 | Non-oxide metal ceramic catalysts comprising metal oxide support and intermediate ceramic passivating layer | Kelly B. Triplett, Johst H. Burk, Willem Vreugdenhil | 1994-08-16 |
| 5330944 | Sulfur-resistant hydrogenation catalyst and process for hydrogenation using same | Willem Vreugdenhil | 1994-07-19 |
| 5321161 | Hydrogenation of nitriles by a tungsten carbide catalyst | Willem Vreugdenhil, Johst H. Burk, James F. Gadberry | 1994-06-14 |
| 5312613 | Process for producing ceramic precursor powders without gel formation | Lieh-Jiun Shyu | 1994-05-17 |