Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9133430 | Apparatus for production of biogas by digestion of organic material | Soren J. Hojsgaard, Per Koefoed-Hansen | 2015-09-15 |
| 5954964 | Process for enhancing dewatering of treated biosolids in a wastewater treatment system | R. David Holbrook | 1999-09-21 |