Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6566539 | Catalyst regeneration by treatment with an oxidizing agent | Daniel Campos, John Byrne Michel | 2003-05-20 |
| 6355846 | Narrowing of poly (tetramethylene ether) glycol | Suri N. Dorai | 2002-03-12 |
| 6225477 | Process for regeneration of carbon-supported, rhenium-containing catalysts | John Byrne Michel, Daniel Campos | 2001-05-01 |
| 5596074 | Method for controlling color formation during polytetramethylene ether glycol production | Peter A. Bloxham, Anne Irisa Breikss, Leon S. Scott, John D. Super, James D. Verbsky | 1997-01-21 |
| 4954658 | Process for reducing fluoride levels in poly(tetramethylene ether) glycol | Suriyanarayanan Dorai | 1990-09-04 |
| 4879420 | Preparation of mixtures of butanediols | — | 1989-11-07 |
| 4859801 | Synthesis of mixtures of butanediols | — | 1989-08-22 |
| 4590285 | Process for preparing a mixture of tetrahydrofuran and 3-alkyl tetrahydrofuran and copolymers thereof | — | 1986-05-20 |
| 4590312 | Process for preparing 2-alkyl-1,4-butanediols | — | 1986-05-20 |
| 4499291 | Process for simultaneous hydrogenation of 2-butyne-1,4-diol and furan | — | 1985-02-12 |
| 4413136 | Purification of tetrahydrofuran | Harry B. Copelin | 1983-11-01 |
| 4383895 | Purification of 1,4-butanediol | Donald C. Paul | 1983-05-17 |