Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9458375 | Chemical amendments for the stimulation of biogenic gas generation in deposits of carbonaceous material | Robert S. Pfeiffer | 2016-10-04 |
| 9434872 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Gary Vanzin, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2016-09-06 |
| 9333542 | Method to stimulate and sustain the anaerobic biodegradation of light non-aqueous phase liquid | — | 2016-05-10 |