Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9663740 | Polymeric imides as pour point depressant additives for oil compositions | Stephen L. Mead, Mohammad A. Rahman | 2017-05-30 |
| 7942941 | Pour point depressant additives for oil compositions | Stephen L. Mead | 2011-05-17 |
| 7691960 | Citric acid based emulsifiers for oilfield applications exhibiting low fluorescence | — | 2010-04-06 |
| 5049311 | Alkoxylated alkyl substituted phenol sulfonates compounds and compositions, the preparation thereof and their use in various applications | Khalid Rasheed, Paul Daniel Berger, Edwin L. O'Brien | 1991-09-17 |