Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5149862 | Preparation of polytetramethylene ether glycol using an acidic zirconia catalyst | Suriyanarayan Dorai, James Schultz | 1992-09-22 |
| 4525580 | Method for reducing color of poly(tetramethylene ether) glycol with hypochlorite | — | 1985-06-25 |