Issued Patents All Time
Showing 25 most recent of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271825 | Turbine oil production | Robert W. Bortz, Quang N. Le, Stephen S. Wong | 1993-12-21 |
| 5243112 | Lubricant range hydrocarbons from light olefins | Arthur W. Chester, Francis G. Dwyer, James C. Vartuli | 1993-09-07 |
| 5140949 | Zeolite-clay composition and uses thereof | Pochen Chu | 1992-08-25 |
| 5079201 | Zeolite-clay composition and uses thereof | Pochen Chu | 1992-01-07 |
| 5037528 | Lubricant production process with product viscosity control | Quang N. Le, Stephen S. Wong | 1991-08-06 |
| 5021142 | Turbine oil production | Robert W. Bortz, Quang N. Le, Stephen S. Wong | 1991-06-04 |
| 5008460 | Synthetic lubricants | Quang N. Le, Joosup Shim, Stephen S. Wong | 1991-04-16 |
| 4975177 | High viscosity index lubricants | Quang N. Le, Stephen S. Wong | 1990-12-04 |
| 4942021 | Multistage system for conversion of lower olefins with reactor quenching means | Frederick J. Krambeck, John D. Kushnerick, Samuel A. Tabak | 1990-07-17 |
| 4919788 | Lubricant production process | Nai Y. Chen, Tracy J. Huang, Quang N. Le, Stephen S. Wong | 1990-04-24 |
| 4876228 | Zeolite modifications | Clarence D. Chang, Cynthia T-W. Chu, Pochen Chu, Ralph M. Dessau, Guenter H. Kuehl +2 more | 1989-10-24 |
| 4814543 | Nitrogen resistant paraffin hydroisomerization catalysts | Nai Y. Chen, Sharon B. McCullen | 1989-03-21 |
| 4810357 | Catalytic dewaxing of light and heavy oils in dual parallel reactors | Arthur W. Chester, James C. Vartuli | 1989-03-07 |
| 4788375 | Olefin conversion to lubricant range hydrocarbons | Guenter G. Kuehl, Rene B. LaPierre | 1988-11-29 |
| 4788374 | Zeolite catalysis | Pochen Chu, Albert B. Schwartz | 1988-11-29 |
| 4773987 | Shape-selective conversion of organic feedstock using clathrate group tectosilicates | John L. Schlenker, James C. Vartuli | 1988-09-27 |
| 4740649 | Conversion of aromatics over novel catalyst composition | Pochen Chu | 1988-04-26 |
| 4740645 | Multistage conversion of lower olefins with interreactor quenching | Frederick J. Krambeck, John D. Kushnerick, Samuel A. Tabak | 1988-04-26 |
| 4719004 | Cracking/dewaxing with high silica zeolite mulled with water and binder | Pochen Chu | 1988-01-12 |
| 4717465 | Process for producing jet fuel with ZSM-22 containing catalist | Nai Y. Chen | 1988-01-05 |
| 4717782 | Catalytic process for oligomerizing ethene | John D. Kushnerick, Samuel A. Tabak | 1988-01-05 |
| 4684756 | Process for upgrading wax from Fischer-Tropsch synthesis | W. Rodman Derr, Jr., James C. Kuo, Tiberiu M. Leib, Donald M. Nace, Samuel A. Tabak | 1987-08-04 |
| 4665265 | Conversion of olefins and paraffins over novel catalyst composition | Pochen Chu | 1987-05-12 |
| 4665269 | Conversion of oxygenates over novel catalyst composition | Pochen Chu | 1987-05-12 |
| 4665253 | Conversion of aromatics over novel catalyst composition | Pochen Chu | 1987-05-12 |