Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10857490 | Separation process having improved capacity | Anders Bitsch-Larsen, Timothy H. Keyes | 2020-12-08 |
| 10577301 | Using pressurized wet gas lines to avoid fouling in purified terephthalic acid (PTA) filters and lines | Timothy H. Keyes | 2020-03-03 |
| 10427073 | Rotary pressure filter apparatus with reduced pressure fluctuations | Anders Bitsch-Larsen, Timothy H. Keyes | 2019-10-01 |
| 10414712 | Purified terephthalic acid (PTA) vent steam utilization | Kathryn Buckalew | 2019-09-17 |
| 10399921 | Purified terephthalic acid (PTA) vent dryer vapor effluent treatment | Allen Nelson, Anders Larsen-Bitsch | 2019-09-03 |
| 9486722 | Solid-liquid separation with a no-dry rotary pressure filter | Timothy H. Keyes | 2016-11-08 |
| 9428436 | Process and apparatus for manufacturing aromatic carboxylic acids | David A. Peterson | 2016-08-30 |
| 9422219 | Pressurized crude aromatic carboxylic acid feed mixes | — | 2016-08-23 |
| 9315441 | High-pressure condensate recycle in the manufacture of purified aromatic carboxylic acids | Fred T. Clark, Allen Nelson | 2016-04-19 |
| 9260370 | Process for using dehydration tower condensate as a purification makeup solvent | — | 2016-02-16 |
| 8779185 | Process and apparatus for manufacturing pure forms of aromatic carboxylic acids | — | 2014-07-15 |
| 8173834 | Process and apparatus for manufacturing pure forms of aromatic carboxylic acids | — | 2012-05-08 |
| 7935845 | Process and apparatus for manufacturing aromatic carboxylic acids including pure forms thereof | Linus K. Leung | 2011-05-03 |
| 7935844 | Recovery of energy during the production of aromatic carboxylic acids | — | 2011-05-03 |
| 6562997 | Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent | David L. Sikkenga, Alpen K. Pandya, Ian C. Zaenger, Kenneth J. Abrams | 2003-05-13 |
| 6194609 | Crystallization in a plate heat exchanger | Kenneth J. Abrams, Debra J. Streich | 2001-02-27 |
| 6137001 | Process for preparing aromatic carboxylic acids with efficient treatments of gaseous effluent | Jeffrey L. Broeker, Frank G. Belmonte, Alakananda Bhattacharyya, Anne M. Karachewski, Bruce I. Rosen +1 more | 2000-10-24 |
| 5756833 | Catalytic purification and recovery of dicarboxylic aromatic acids | Bruce I. Rosen | 1998-05-26 |
| 5616792 | Catalytic purification of dicarboxylic aromatic acid | Bruce I. Rosen | 1997-04-01 |
| 5502247 | Process for recovery of aromatic acid or ester and polyol from waste polyester resins | Bruce I. Rosen, Jeffrey I. Rosenfeld | 1996-03-26 |
| 5200557 | Process for preparation of crude terephthalic acid suitable for reduction to prepare purified terephthalic acid | John C. Gee, Jeffrey I. Rosenfeld | 1993-04-06 |