Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7871525 | Biomass treatment of organic waste or waste water | Robert E. Clifford, III, John Mills, Michael S. Gratz | 2011-01-18 |
| 7481940 | Biomass treatment of organic waste or water waste | Robert E. Clifford, III, John Mills, Michael S. Gratz | 2009-01-27 |