Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5596074 | Method for controlling color formation during polytetramethylene ether glycol production | Anne Irisa Breikss, Richard E. Ernst, Leon S. Scott, John D. Super, James D. Verbsky | 1997-01-21 |