Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4499317 | Modified zeolite catalyst composition and process for alkylating toluene with methanol to form styrene | Ralph J. Spohn | 1985-02-12 |
| 4499318 | Modified zeolite catalyst composition and process for alkylating toluene with methanol to form styrene | — | 1985-02-12 |
| 4483936 | Modified zeolite catalyst composition for alkylating toluene with methanol to form styrene | Ralph J. Spohn | 1984-11-20 |
| 4483937 | Modified zeolite catalyst composition for alkylating toluene with methanol to form styrene | — | 1984-11-20 |
| 4463204 | Process for alkylating toluene with methanol to form styrene using a low sodium content potassium/cesium modified zeolite catalyst composition | — | 1984-07-31 |