Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5424482 | Process for preparing color-stable tertiary butyldiethanolamine | Thomas H. Overgaard | 1995-06-13 |
| 5208377 | Purification and decolorization of off-color alkyl alkanolamines | Thomas H. Overgaard | 1993-05-04 |