Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11292953 | Method of producing hydroxyalkylcarbamate-functional polyamides and uses thereof | John H. Clements, David C. Lewis | 2022-04-05 |
| 11008503 | Water-in-oil hydraulic fracturing fluid and method of using such | John H. Clements, David C. Lewis | 2021-05-18 |