Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5156829 | Method for stabilizing synthetic mesoporous crystalline material | James C. Vartuli | 1992-10-20 |
| 5145816 | Method for functionalizing synthetic mesoporous crystalline material | Jeffrey S. Beck, David C. Calabro, Bruce P. Pelrine, Kirk D. Schmitt, James C. Vartuli | 1992-09-08 |
| 5061466 | Synthesis of large pore zeolites containing gallium | Clarence D. Chang, Cynthia T-W. Chu, Thomas F. Degnan | 1991-10-29 |
| 5037529 | Integrated low pressure aromatization process | Ralph M. Dessau, Randall D. Partridge, Nai Y. Chen | 1991-08-06 |
| 4950829 | Aromatization with improved selectivity | Scott Han | 1990-08-21 |
| 4935573 | Aromatization process and catalyst utilizing a mixture of shape-selective porous crystalline silicate zeolite and pillared layered metal oxide | Brent A. Aufdembrink, Thomas F. Degnan | 1990-06-19 |
| 4933310 | Aromatization process and catalyst utilizing a mixture of shape-selective porous crystalline silicate zeolite and pillared layered metal oxide | Brent A. Aufdembrink, Thomas F. Degnan | 1990-06-12 |
| 4861932 | Aromatization process | Nai Y. Chen, Thomas F. Degnan | 1989-08-29 |
| 4849568 | Stabilization of zinc on catalysts | Paul G. Rodewald | 1989-07-18 |
| 4840929 | Zeolite beta with improved regeneration characteristics | Nai Y. Chen | 1989-06-20 |
| 4835336 | Method for suppressing hydrogenolysis of noble metal/low acidity zeolites | — | 1989-05-30 |
| 4828812 | Titanosilicates of enhanced ion exchange capacity and their preparation | Nai Y. Chen, Scott Han | 1989-05-09 |
| 4827068 | Aromatization with catalyst comprising noble-metal containing titanosilicate having the structure of zeolite beta | Nai Y. Chen | 1989-05-02 |
| 4814543 | Nitrogen resistant paraffin hydroisomerization catalysts | Nai Y. Chen, William E. Garwood | 1989-03-21 |
| 4789656 | Crystalline silicate zeolite beta of improved stability | Nai Y. Chen | 1988-12-06 |
| 4752595 | Catalyst pretreatment for regenerated noble metal on zeolite catalyst | Y. Y. Peter Tsao, Stephen S. Wong | 1988-06-21 |
| 4657874 | Redispersion of agglomerated noble metals on zeolite catalysts | William S. Borghard, Tracy J. Huang, Hans J. Schoennagel, Ying-Yen P. Tsao, Stephen S. Wong | 1987-04-14 |
| 4645751 | Regeneration of noble metal-highly siliceous zeolite with sequential hydrogen halide and halogen or organic-halogen compound treatment | Stephen S. Wong, Tracy J. Huang | 1987-02-24 |
| 4615997 | Method for preparing hydroisomerization catalysts | Nai Y. Chen, Stephen M. Oleck | 1986-10-07 |