Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500329 | Selective ring opening process for producing diesel fuel with increased cetane number | Ying-Yen P. Tsao, Philip J. Angevine | 2002-12-31 |
| 6362123 | Noble metal containing low acidic hydrocracking catalysts | Ying-Yen P. Tsao, Philip J. Angevine | 2002-03-26 |
| 6241876 | Selective ring opening process for producing diesel fuel with increased cetane number | Ying-Yen P. Tsao, Philip J. Angevine | 2001-06-05 |
| 6210563 | Process for producing diesel fuel with increased cetane number | Ying-Yen P. Tsao, Philip J. Angevine | 2001-04-03 |
| 5824835 | Isoparaffin-olefin alkylation process | Pradyot A. Agaskar | 1998-10-20 |
| 5804690 | Selective monomethylation of aromatics with dimethylcarbonate | Clarence D. Chang | 1998-09-08 |
| 5705729 | Isoparaffin-olefin alkylation process | — | 1998-01-06 |
| 5608133 | Catalytic oligomerization | Clarence D. Chang, Jose G. Santiesteban, James C. Vartuli | 1997-03-04 |
| 5545788 | Process for the alkylation of benzene-rich reformate using MCM-49 | Jane C. Cheng | 1996-08-13 |
| 5498817 | Isoparaffin/olefin alkylation over vacancy-containing titanometallate molecular sieves | Charles T. Kresge | 1996-03-12 |
| 5481057 | Alkylation with activated equilibrium FCC catalyst | Weldon K. Bell, Rudolph M. Lago, Ying-Yen P. Tsao, D. Duayne Whitehurst | 1996-01-02 |
| 5292981 | Isoparaffin-olefin alkylation process | Reuel Shinnar | 1994-03-08 |
| 5188996 | Redispersion of noble metal on low acidity support | Ying-Yen P. Tsao | 1993-02-23 |
| 5082984 | Dual function catalyst and isomerization therewith | Lawrence M. Brown | 1992-01-21 |
| 5028573 | Dual function catalyst and isomerization therewith | Lawrence M. Brown | 1991-07-02 |
| 4919788 | Lubricant production process | Nai Y. Chen, William E. Garwood, Quang N. Le, Stephen S. Wong | 1990-04-24 |
| 4906787 | Process for the production of ethers | Charles Sorensen, Philip Varghese | 1990-03-06 |
| 4857664 | Process for the production of ether and alcohol | Rene B. LaPierre, Samuel A. Tabak | 1989-08-15 |
| 4756822 | Hydroprocessing catalyst and process | Nai Y. Chen | 1988-07-12 |
| 4672049 | Hydroprocessing catalyst | Nai Y. Chen | 1987-06-09 |
| 4657874 | Redispersion of agglomerated noble metals on zeolite catalysts | William S. Borghard, Sharon B. McCullen, 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 | Sharon B. McCullen, Stephen S. Wong | 1987-02-24 |
| 4500417 | Conversion of Fischer-Tropsch products | Nai Y. Chen, Werner O. Haag, Stephen S. Wong | 1985-02-19 |
| 4409412 | Process for producing alkyl aromatic compounds | Werner O. Haag | 1983-10-11 |
| 4384161 | Heterogeneous isoparaffin/olefin alkylation | — | 1983-05-17 |