Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9018142 | Oil-field biocide method utilizing a peracid | John M. Rovison, Henry A. Pfeffer | 2015-04-28 |
| 8575075 | Oil-field viscosity breaker method utilizing a peracid | Henry A. Pfeffer, John M. Rovison | 2013-11-05 |