Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6942031 | Lignosulfonate-acrylic acid graft copolymers as sacrificial agents for carbon dioxide foaming agents | George Kalfoglou, Grover S. Paulett | 2005-09-13 | |
| 5632336 | Method for improving injectivity of fluids in oil reservoirs | Phillip K. Notz, James F. Stevens | 1997-05-27 | $138,184,000 |