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/* Hydrocarbon recovery by using biogenic materials combined with Pneumatic fracturing */
|align = "center"|'''Groundwater Services Inc'''
|align = "center"|<font color="#0000FF"><u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=2008041990 WO2008041990A1]</u></font>
|align = "center"|Stimulating anaerobic biologic production of methane from non-liquid hydrocarbon-bearing subsurface formations
|-
|}
