Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10501674 | Enhanced activated sludge as drilling mud additive | Gopi Chand Tripuraneni, Mark E. Zappi | 2019-12-10 |
| 10479716 | Biorefinery method and system for isolated environments | Mark E. Zappi, Daniel Gang, Emmanuel Revellame, Andrei Chistoserdov, Rakesh Bajpai +2 more | 2019-11-19 |