Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10948179 | Liquid biomass heating system | Barry A. Freel, Geoffrey D. Hopkins, R. Lee Torrens, Stefan Muller | 2021-03-16 |
| 10337726 | Liquid biomass heating system | Barry A. Freel, Geoffrey D. Hopkins, R. Lee Torrens, Stefan Muller | 2019-07-02 |