Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7138528 | Method for crystallizing N-vinyl-2-pyrrolidone | Edward Patrick Carey | 2006-11-21 |
| 7060787 | Extraction of impurities from grafted polyolefins | Edward Patrick Carey | 2006-06-13 |
| 6478930 | Impurities separation by distillation | — | 2002-11-12 |
| 6375804 | Tertiary butyl acetate recovery | — | 2002-04-23 |
| 6306263 | Impurities separation by distillation | — | 2001-10-23 |
| 6264800 | Purification process | — | 2001-07-24 |
| 6166270 | Extractive distillation separation | Michael J. Szady | 2000-12-26 |
| 5769238 | Apparatus for cleaning and destoning beans, peas, and other foods of particulate form | — | 1998-06-23 |
| 5762764 | Purification of acetone | Te-Chih Chang | 1998-06-09 |
| 5731476 | Poly ether preparation | Edward T. Shawl, Haven S. Kesling, Jr. | 1998-03-24 |
| 5631386 | Alkylene carbonate recovery | — | 1997-05-20 |
| 5625109 | Liquid phase dehydration of tertiary butyl alcohol | — | 1997-04-29 |
| 5567853 | Purification of acetone | — | 1996-10-22 |
| 5476971 | Glycerine ditertiary butyl ether preparation | — | 1995-12-19 |
| 5436382 | Isobutylene recovery process | — | 1995-07-25 |
| 5292964 | Preparation of alkyl tertiary butyl ether | — | 1994-03-08 |
| 5066742 | Manufacture of C2-C8 olefin/maleic anhydride copolymers | — | 1991-11-19 |
| 4801760 | Tertiary butyl alcohol purification | — | 1989-01-31 |
| 4675082 | Recovery of propylene glycol mono t-butoxy ether | — | 1987-06-23 |
| 4626965 | Illumination system for a visual display terminal | Jyoti Gupta | 1986-12-02 |
| 4544453 | Stripping of unreacted glycol ethers and acids from an esterification reaction mixture | — | 1985-10-01 |
| 4433173 | Acetophenone purification | Frank W. Melpolder, Walter A. Mameniskis | 1984-02-21 |
| 4321231 | Process for decreasing the rate of titanium corrosion | — | 1982-03-23 |