Issued Patents All Time
Showing 25 most recent of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7230353 | Charging circuit in uninterruptible power supply system | Hung-Chieh Lin | 2007-06-12 |
| 5780383 | Solid superacid catalyst comprising group VII metal and having H.sub.o less than -18 | Elmer J. Hollstein, James T. Wei | 1998-07-14 |
| 5648590 | Liquid phase isomerization of alkanes | Vasant K. Patel, David H. Vahlsing, James T. Wei, Harry K. Myers, Jr. | 1997-07-15 |
| 5629257 | Solid superacid catalysts comprising platinum metal | Benjamin S. Umansky, Manoj V. Bhinde, Chen-Shi Huang | 1997-05-13 |
| 5516964 | Hydrocarbon isomerization using solid superacid catalysts comprising platinum metal | Benjamin S. Umansky, Manoj V. Bhinde | 1996-05-14 |
| 5510558 | Oxidative dehydrogenation of hydrocarbons with active carbon catalyst | Benjamin S. Umansky, Kevin A. Boyer | 1996-04-23 |
| 5494569 | Hydrocracking using solid superacid catalysts comprising platinum metal | Benjamin S. Umansky, Manoj V. Bhinde | 1996-02-27 |
| 5494571 | Naphtha upgrading using solid superacid catalysts comprising platinum metal | Benjamin S. Umansky, Richard E. Mitchell, Manoj V. Bhinde, Chiu-Hsun LIN | 1996-02-27 |
| 5493067 | Solid superacid alkylation catalyst compositions and alkylation method using the same | Howard P. Angstadt, Elmer J. Hollstein | 1996-02-20 |
| 5491278 | Alkylation process using solid superacid catalyst liquid phase | Howard P. Angstadt, Elmer J. Hollstein | 1996-02-13 |
| 5476981 | Oxidative dehydrogenation of hydrocarbons with solid superacid catalyst | Benjamin S. Umansky | 1995-12-19 |
| 5362694 | Sulfur dioxide regeneration of superacid catalyst | Elmer J. Hollstein | 1994-11-08 |
| 5321197 | Processes using solid-acid catalyst composition | Howard P. Angstadt, Elmer J. Hollstein | 1994-06-14 |
| 5310868 | Processes using solid-acid catalyst compositions | Howard P. Angstadt, Elmer J. Hollstein | 1994-05-10 |
| 5214017 | Solid-acid alkylation catalyst compositions for alkylation processes | Howard P. Angstadt, Elmer J. Hollstein | 1993-05-25 |
| 5212136 | Solid-acid alkylation catalyst compositions for alkylation processes | Howard P. Angstadt, Elmer J. Hollstein | 1993-05-18 |
| 5019671 | Liquid phase isomerization of alkanes | Vasant K. Patel, David H. Vahlsing, James T. Wei, Harry K. Myers, Jr. | 1991-05-28 |
| 4956519 | Catalyst for hydrocarbon conversion and conversion process utilizing the same | Elmer J. Hollstein, James T. Wei | 1990-09-11 |
| 4918041 | Catalyst for hydrocarbon conversion and conversion process utilizing the same | Elmer J. Hollstein, James T. Wei | 1990-04-17 |
| 4855485 | Process for production of cinnamates | — | 1989-08-08 |
| 4827023 | Process for the selective formation of dialkyl succinates | — | 1989-05-02 |
| 4775447 | Process for the production of 2,2-dimethoxypropane | Paul E. Ellis, Jr. | 1988-10-04 |
| 4737591 | Catalyst and process for production of cinnamates | — | 1988-04-12 |
| 4652344 | Preparation of 1,1-dimethoxycyclohexane | Paul E. Ellis, Jr. | 1987-03-24 |
| 4620027 | Catalyst and process for production of cinnamates | — | 1986-10-28 |