Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5157191 | Modified crystalline aluminosilicate zeolite catalyst and its use in the production of lubes of high viscosity index | David S. Shihabi | 1992-10-20 |
| 5085762 | Catalytic cracking of hydrocarbons | Robert P. L. Absil, Gary J. Green, David O. Marler, David S. Shihabi, Richard F. Socha | 1992-02-04 |
| 5080878 | Modified crystalline aluminosilicate zeolite catalyst and its use in the production of lubes of high viscosity index | David S. Shihabi | 1992-01-14 |
| 5043307 | Modified crystalline aluminosilicate zeolite catalyst and its use in the production of lubes of high viscosity index | Clarence D. Chang, Scott Han, David S. Shihabi | 1991-08-27 |
| 4908120 | Catalytic dewaxing process using binder-free zeolite | Fritz A. Smith | 1990-03-13 |
| 4876411 | Modified crystalline aluminosilicate zeolite catalyst and its use in the production of lubes of high viscosity index | Clarence D. Chang, Scott Han, David S. Shihabi | 1989-10-24 |
| 4872968 | Catalytic dewaxing process using binder-free catalyst | — | 1989-10-10 |
| 4861894 | Pyridine and alkylpyridine synthesis using a crystalline silicate catalyst having the ZSM-5 structure | Tsoung Y. Yan | 1989-08-29 |
| 4780444 | Activation of metallophophates | Eric G. Derouane | 1988-10-25 |
| 4585546 | Hydrotreating petroleum heavy ends in aromatic solvents with large pore size alumina | Malvina Farcasiu, Eric Scott | 1986-04-29 |
| 4582815 | Extrusion of silica-rich solids | — | 1986-04-15 |
| 4579993 | Catalyst for methanol conversion by a combination of steaming and acid-extraction | Clarence D. Chang, Richard F. Socha | 1986-04-01 |
| 4548709 | Hydrotreating petroleum heavy ends in aromatic solvents with dual pore size distribution alumina catalyst | Malvina Farcasiu, Eric Scott | 1985-10-22 |
| 4547485 | Demetalation catalyst and a method for its preparation | — | 1985-10-15 |
| 4486298 | Adsorptive demetalation of heavy petroleum residua | Susan D. Brandes, Malvina Farcasiu, Eric Scott | 1984-12-04 |
| 4388177 | Preparation of natural ferrierite hydrocracking catalyst and hydrocarbon conversion with catalyst | Bruce P. Pelrine | 1983-06-14 |
| 4335019 | Preparation of natural ferrierite hydrocracking catalyst and hydrocarbon conversion with catalyst | Bruce P. Pelrine | 1982-06-15 |
| 4305808 | Catalytic hydrocracking | Allan W. Peters | 1981-12-15 |
| 4292205 | Ion exchange and impregnation of catalysts | — | 1981-09-29 |
| 4229282 | Catalytic dewaxing of hydrocarbon oils | Alan W. Peters, Thomas R. Stein | 1980-10-21 |