Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11124693 | Hydroxyalkylurethane kinetic hydrate inhibitors | Marek K. Pakulski, David C. Lewis | 2021-09-21 |
| 11008503 | Water-in-oil hydraulic fracturing fluid and method of using such | Robert Carl Steves, David C. Lewis | 2021-05-18 |