Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4962256 | Process for preparing long chain alkyl aromatic compounds | Quang N. Le, David O. Marler, John P. McWilliams, Mae K. Rubin, Joosup Shim | 1990-10-09 |
| 4962269 | Isomerization process | Rene B. LaPierre, Randall D. Partridge | 1990-10-09 |
| 4923690 | Method for producing highly siliceous zeolites | Ernest W. Valyocsik, Robert B. Calvert | 1990-05-08 |
| 4919788 | Lubricant production process | Nai Y. Chen, William E. Garwood, Tracy J. Huang, Quang N. Le | 1990-04-24 |
| 4913794 | Process configuration for producing high viscosity lubricating oils | Quang N. Le, Robert A. Ware | 1990-04-03 |
| 4912277 | Process for preparing long chain alkyl aromatic compounds | Brent A. Aufdembrink, Charles T. Kresge, Quang N. Le, Joosup Shim | 1990-03-27 |
| 4911821 | Lubricant production process employing sequential dewaxing and solvent extraction | James R. Katzer, Quang N. Le | 1990-03-27 |
| 4851109 | Integrated hydroprocessing scheme for production of premium quality distillates and lubricants | Nai Y. Chen, Rene B. LaPierre, Randall D. Partridge | 1989-07-25 |
| 4826792 | Method of noble metal-zeolite catalyst activation with Bronsted acid compound | Quang N. Le | 1989-05-02 |
| 4764266 | Integrated hydroprocessing scheme for production of premium quality distillates and lubricants | Nai Y. Chen, Rene B. LaPierre, Randall D. Partridge | 1988-08-16 |
| 4752595 | Catalyst pretreatment for regenerated noble metal on zeolite catalyst | Sharon B. McCullen, Y. Y. Peter Tsao | 1988-06-21 |
| 4714537 | Process for cyclic dewaxing/regeneration of hydrocarbon feedstocks | Diane V. Jorgensen, Clinton R. Kennedy | 1987-12-22 |
| 4678764 | Reactivation of noble metal-zeolite catalysts | Quang N. Le, Ying-Yen P. Tsao | 1987-07-07 |
| 4657874 | Redispersion of agglomerated noble metals on zeolite catalysts | William S. Borghard, Tracy J. Huang, Sharon B. McCullen, Hans J. Schoennagel, Ying-Yen P. Tsao | 1987-04-14 |
| 4650780 | Reactivation of noble metal-containing catalyst materials | Sowmithri Krishnamurthy, Quang N. Le | 1987-03-17 |
| 4645751 | Regeneration of noble metal-highly siliceous zeolite with sequential hydrogen halide and halogen or organic-halogen compound treatment | Sharon B. McCullen, Tracy J. Huang | 1987-02-24 |
| 4532225 | Preparation of metal-containing zeolite catalysts of increased stability and activity | Ying-Yen P. Tsao | 1985-07-30 |
| 4518485 | Hydrotreating/isomerization process to produce low pour point distillate fuels and lubricating oil stocks | Rene B. LaPierre, Randall D. Partridge, Nai Y. Chen | 1985-05-21 |
| 4500417 | Conversion of Fischer-Tropsch products | Nai Y. Chen, Werner O. Haag, Tracy J. Huang | 1985-02-19 |
| 4472517 | Preparation of metal-containing zeolite catalysts of increased stability and activity | Ying-Yen P. Tsao | 1984-09-18 |
| 4430516 | Conversion of olefins to low pour point distillates and lubes | Rene B. La Pierre | 1984-02-07 |