Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5200557 | Process for preparation of crude terephthalic acid suitable for reduction to prepare purified terephthalic acid | Jeffrey I. Rosenfeld, Thomas M. Bartos | 1993-04-06 | $48,451,000 |
| 4855491 | Method for selectively removing process stream impurities utilizing reverse osmosis | Calvin T. Chew | 1989-08-08 | $10,483,000 |
| 4337069 | Gas phase olefin polymerization recycle gas scrubbing tower | Paul M. German, James Lamont | 1982-06-29 | $71,357,000 |