Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5952520 | Recovery of ester monomer from polyester resins | — | 1999-09-14 |
| 5821381 | Low pressure process for purifying crude polyester by sublimation | — | 1998-10-13 |
| 5770778 | Purification of ethylene glycol recovered from polyester resins | — | 1998-06-23 |
| 5747547 | Recovery of components from polyester resins | William J. Gamble | 1998-05-05 |
| 5712410 | Gas phase crystallization of dimethyl terephthalate | — | 1998-01-27 |
| 5672780 | Purification of ethylene glycol recovered from polyester resins | William J. Gamble | 1997-09-30 |
| 5672729 | Recovery of terephthalate diesters from glycol residues | — | 1997-09-30 |
| 5654470 | Recovery of components from polyester resins | William J. Gamble | 1997-08-05 |
| 5578173 | Removal of dimethylterephthalate from a methanolysis vapor stream | Walter E. Toot, Jr., Brian L. Simpson, Bruce Roger DeBruin, William J. Gamble | 1996-11-26 |
| 5576456 | Recovery of components from polyester resins | William J. Gamble | 1996-11-19 |
| 5432203 | Process of recovering components from polyester resins | Bruce Roger DeBruin, William J. Gamble | 1995-07-11 |
| 5364500 | Process for removing nitrites from a silver nitrate solution | Patrick M. Chefalo, Stephen Michael Popham, Gary Michael Distefano, Robert J. Buesing | 1994-11-15 |
| 5298530 | Process of recovering components from scrap polyester | William J. Gamble, Bruce Roger DeBruin | 1994-03-29 |
| 5051528 | Recovery process for ethylene glycol and dimethylterephthalate | Kevin M. Ryan | 1991-09-24 |