Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11760710 | Treatment of residual streams from the manufacture of bisphenols | — | 2023-09-19 |
| 9255053 | Treatment of bisphenol-A residue streams | Steven D. Evitt, Stephen W. Fetsko, Chung-Ming Chi | 2016-02-09 |
| 8431749 | Recovery of phenol and acetone from bisphenol-A streams | Steven D. Evitt, Stephen W. Fetsko, Chung-Ming Chi | 2013-04-30 |
| 8088956 | BPA process improvement | — | 2012-01-03 |
| 8044248 | Treatment of bisphenol-A residue streams | — | 2011-10-25 |
| 7902408 | BPA process improvement | — | 2011-03-08 |
| 7858830 | Process for recovering phenol from a BPA waste stream | Steven D. Evitt, Chung-Ming Chi, Marshall Stephen Lee | 2010-12-28 |
| 6465697 | Catalyst promotor for the manufacture of polyphenols | Pui K. Wong | 2002-10-15 |