Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6191060 | Reclamation of metal catalysts used in the production of diaryl carbonates | — | 2001-02-20 |
| 6160154 | Method and catalyst system for producing aromatic carbonates | James Spivack, Donald Wayne Whisenhunt, Jr., James Norman Cawse, Bruce Fletcher Johnson, Marsha Mottel Grade +2 more | 2000-12-12 |
| 6143914 | Method and catalyst system for producing aromatic carbonates | James Spivack, Donald Wayne Whisenhunt, Jr., James Norman Cawse, Bruce Fletcher Johnson, Grigorii Lev Soloveichik +1 more | 2000-11-07 |
| 6143937 | Recovery of hydroxyaromatic compound from aqueous extract solutions | — | 2000-11-07 |
| 6090737 | Removal of lead from organic diaryl carbonate reaction mixtures | — | 2000-07-18 |
| 5981788 | Method for recovering and recycling catalyst constituents | Sheldon J. Shafer, Eric James Pressman, Ganesh Kailasam, Julia Lam Lee | 1999-11-09 |