Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8864999 | Methods for regenerating acidic ion-exchange resins and reusing regenerants in such methods | Timothy A. Brandvold, Stanley J. Frey, Thomas Traynor | 2014-10-21 |
| 8524087 | Low metal, low water biomass-derived pyrolysis oils and methods for producing the same | Stanley J. Frey, Richard E. Marinangeli, Timothy A. Brandvold, Mark B. Koch, Jeffrey A. Noga +1 more | 2013-09-03 |