Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9932521 | Calcium ion tolerant self-suspending proppants | David S. Soane, Robert P. Mahoney, Marie K. Herring, Rosa Casado Portilla | 2018-04-03 |
| 9868896 | Self-suspending proppants for hydraulic fracturing | Robert P. Mahoney, David S. Soane, Marie K. Herring, Rosa Casado Portilla, Philip Wuthridge | 2018-01-16 |