Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4751341 | Oligomerization of olefins with BF.sub.3 treated zeolite | — | 1988-06-14 |
| 4717780 | Catalytic aromatics conversion | David H. Olson, Ernest W. Valyocsik | 1988-01-05 |
| 4709110 | Catalytic conversion with boron trifluoride treated zeolite | — | 1987-11-24 |
| 4709114 | Catalytic oxygenate conversion | Ernest W. Valyocsik | 1987-11-24 |
| 4683051 | Catalytic conversion with boron trifluoride treated zeolite | — | 1987-07-28 |
| 4665264 | Catalytic conversion | Ernest W. Valyocsik | 1987-05-12 |
| 4567310 | Preparation of modified zeolites and their utilization | — | 1986-01-28 |
| 4508836 | Catalytic conversion process for aromatic feedstocks with hydrogen regeneration of coke-selectivated zeolite catalyst | Werner O. Haag, David H. Olson | 1985-04-02 |
| 4477583 | Silica-modified catalyst and use for selective production of para-dialkyl substituted benzenes | — | 1984-10-16 |
| 4465886 | Silica-modified catalyst and use for selective production of para-dialkyl substituted benzenes | — | 1984-08-14 |
| 4421941 | Catalyst and process for selective production of para-dialkysubstituted benzenes | David H. Olson | 1983-12-20 |
| 4402867 | Silica-modified zeolite catalysts | — | 1983-09-06 |
| 4379761 | Catalyst and process for making said catalyst | David H. Olson | 1983-04-12 |
| 4376036 | Production of high V. I. lubricating oil stock | William E. Garwood, Nai Y. Chen | 1983-03-08 |
| 4358395 | Hydrogen regeneration of coke-selectivated crystalline aluminosilicate catalyst | Werner O. Haag, David H. Olson | 1982-11-09 |
| 4300009 | Conversion of biological material to liquid fuels | Werner O. Haag, Paul B. Weisz | 1981-11-10 |