Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8765644 | Polyamide emulsifier based on polyamines and fatty acid/carboxylic acid for oil based drilling fluid applications | Hua Yu, Dale S. Steichen, Alan Duncan James, Thomas William Himmel | 2014-07-01 |