Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4758328 | Shock calcined aluminosilicate zeolites | — | 1988-07-19 |
| 4758327 | Shock calcined crystalline silica catalysts | — | 1988-07-19 |
| 4623633 | Shock calcined aluminosilicate zeolites | — | 1986-11-18 |
| 4623636 | Shock calcined crystalline silica catalysts | — | 1986-11-18 |
| 4618738 | Hydrocarbon conversion process with catalytically active amorphous silica | Jeffery W. Koepke | 1986-10-21 |
| 4582694 | Shock calcined crystalline silica catalysts | — | 1986-04-15 |
| 4581214 | Shock calcined aluminosilicate zeolites | — | 1986-04-08 |
| 4565802 | Silica-containing catalysts | — | 1986-01-21 |
| 4548705 | Hydrocracking with catalytically active amorphous silica and zeolites | Jeffery W. Koepke | 1985-10-22 |
| 4518703 | Crystalline silica catalysts | — | 1985-05-21 |
| 4513158 | Polymerization and oligomerization with catalytically active amorphous silica | Jeffery W. Koepke | 1985-04-23 |
| 4501925 | Chemical reaction promoted by catalytically active amorphous silica | Jeffery W. Koepke | 1985-02-26 |
| 4481102 | Cracking with catalytically active amorphous silica | Jeffery W. Koepke | 1984-11-06 |
| 4433187 | Process for selectively producing para-xylene | — | 1984-02-21 |
| 4414137 | Catalytically active amorphous silica | Jeffery W. Koepke | 1983-11-08 |
| 4344927 | Method of preparing crystalline silica polymorph | — | 1982-08-17 |
| 4325929 | Method of preparing crystalline silica polymorph | — | 1982-04-20 |
| 4270017 | Process for selectively producing para-xylene | — | 1981-05-26 |