Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11261371 | Use of organic acids or a salt thereof in surfactant-based enhanced oil recovery formulations and techniques | Pierre Solastiouk, David C. Lewis | 2022-03-01 |
| 10519363 | Ultra-high salinity surfactant formulation | David C. Lewis, Srinivasa S. Godavarthy | 2019-12-31 |
| 9988571 | Surfactant formulation for release of underground fossil fluids | David C. Lewis, Guy Biesmans, Srinivasa S. Godavarthy, Farron W. Miller | 2018-06-05 |
| 8403069 | Oil recovery employing alkylene carbonates | David C. Lewis, James R. Machac, Jr. | 2013-03-26 |
| 6753381 | Polymer blends and their application as viscosity index improvers | Munmaya K. Mishra, Raymond G. Saxton, Gary J. Spedale | 2004-06-22 |