Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7524369 | Low-density cement compositions, density-reducing additives, and methods of use | William J. Caveny, Michael J. Szymanski, Richard F. Vargo, Jr., Rickey L. Morgan, John Heaton | 2009-04-28 |
| 7510609 | Low-density cement compositions, density-reducing additives, and methods of use | William J. Caveny, Michael J. Szymanski, Richard F. Vargo, Jr., Rickey L. Morgan, John Heaton | 2009-03-31 |