Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9434872 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Glenn Ulrich, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2016-09-06 |
| 9004162 | Methods of stimulating acetoclastic methanogenesis in subterranean deposits of carbonaceous material | Joel R. Sevinsky, Shelly A. Haveman, Nicholas R. Kotter, William Mahaffey | 2015-04-14 |
| 8794315 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Glenn Ulrich, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2014-08-05 |
| 8302683 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Glenn Ulrich, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2012-11-06 |
| 8067223 | Thermacetogenium phaeum consortium for the production of materials with enhanced hydrogen content | Robert S. Pfeiffer, Glenn Ulrich | 2011-11-29 |
| 8051908 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Glenn Ulrich, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2011-11-08 |
| 7977282 | Chemical amendments for the stimulation of biogenic gas generation in deposits of carbonaceous material | Robert S. Pfeiffer, Glenn Ulrich, Roland P. DeBruyn | 2011-07-12 |
| 7975762 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Glenn Ulrich, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2011-07-12 |
| 7871792 | Thermacetogenium phaeum consortium for the production of materials with enhanced hydrogen content | Robert S. Pfeiffer, Glenn Ulrich | 2011-01-18 |
| 7845403 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Glenn Ulrich, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2010-12-07 |
| 7640978 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Glenn Ulrich, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2010-01-05 |
| 7426960 | Biogenic fuel gas generation in geologic hydrocarbon deposits | Robert S. Pfeiffer, Glenn Ulrich, Verlin Dannar, Roland P. DeBruyn, James B. Dodson | 2008-09-23 |
| 7416879 | Thermacetogenium phaeum consortium for the production of materials with enhanced hydrogen content | Robert S. Pfeiffer, Glenn Ulrich | 2008-08-26 |