Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7538060 | Palladium-copper chromite hydrogenation catalysts | Scott Donald Barnicki, Zhufang Liu, Steven Thomas Perri, Paul Randolph Worsham | 2009-05-26 |
| 6762276 | Hydrogenation of polyester oligomers containing terephthalic acid residues | Charles Edwan Sumner, Jr., Robert Lin | 2004-07-13 |
| 6291706 | Hydrogenation of phthalic acids to cyclohexanedicarboxylic acid | Charles Edwan Sumner, Jr. | 2001-09-18 |
| 5504220 | Preparation of .alpha.-tocopherol | Yeong-Jen Kuo, Gary Wayne Hartley, David J. Allen | 1996-04-02 |
| 5399742 | Low pressure process for the manufacture of cyclohexanedicarboxylate esters | Brent Alan Tennant, Mark Williams | 1995-03-21 |
| 5359134 | Process for preparing phenylterephthalic acid | Charles Edwan Sumner, Jr., Michael Bellas, Gether Irick, Jr., Dewey W. Fuller, Jr., Ernest Arnold +1 more | 1994-10-25 |
| 5334754 | Process for preparing 2,5-diphenylterephthalic acid by oxidation | Charles Edwan Sumner, Jr., Ernest Arnold, Eric J. Fugate, Dewey W. Fuller, Jr. | 1994-08-02 |
| 5319129 | Preparation of dimethyl cyclohexanedicarboxylates | Yeong-Jen Kuo, Brent Alan Tennant | 1994-06-07 |
| 5286898 | Low pressure process for the hydrogenation of dimethyl benzenedicarboxylates to the corresponding dimethyl cyclohexanedicarboxlates | Brent Alan Tennant, Yeong-Jen Kuo, Timothy W. Price | 1994-02-15 |
| 5258556 | Process for the manufacture of 2,2,4,4-tetramethylcyclobutanediol | Charles Sumner, Jennifer R. Knight | 1993-11-02 |
| 5210330 | Process for the preparation of phenylhydroquinone | Dewey W. Fuller, Jr, Bobby Bernard | 1993-05-11 |
| 5185476 | Low pressure catalytic hydrogenation of carbonyl-containing compounds and supported catalysts therefor | — | 1993-02-09 |
| 5169994 | Process for the manufacture of 2,2,4,4-tetramethycyclobutanediol | Charles Sumner, Jennifer R. Knight | 1992-12-08 |
| 5068057 | Conversion of carbon dioxide to carbon monoxide | James V. Walden | 1991-11-26 |
| 4962210 | Process for the preparation of high-purity tetrahydrofuran | Stephen N. Falling | 1990-10-09 |
| 4847429 | Synthesis of phenylhydroquinones | Carl M. Lentz, Dale E. Van Sickle, Joseph Stanton Bowers, Jr. | 1989-07-11 |
| 4837367 | Low pressure catalytic hydrogenation of carbonyl-containing compounds | Paul S. Wehner, Gregory O. Nelson, Patricia N. Mercer | 1989-06-06 |
| 4837368 | Low pressure catalytic hydrogenation of carbonyl-containing compounds and supported catalysts therefor | Paul S. Wehner | 1989-06-06 |
| 4798911 | Catalyst composition and method for selective dehydrogenation | Carl M. Lentz, Paul S. Wehner | 1989-01-17 |
| 4518714 | Process for the selective production of olefins from synthesis gas | — | 1985-05-21 |