| Bioconversion of synthesis gas into liquid or gaseous fuels. KT Klasson, MD Ackerson, EC Clausen, JL Gaddy | 225 | 1992 |
| Biological conversion of coal and coal-derived synthesis gas KT Klasson, MD Ackerson, EC Clausen, JL Gaddy Fuel 72 (12), 1673-1678, 1993 | 150 | 1993 |
| Bioreactor design for synthesis gas fermentations KT Klasson, MD Ackerson, EC Clausen, JL Gaddy Fuel 70 (5), 605-614, 1991 | 113 | 1991 |
| Two phase hydroprocessing MD Ackerson, MS Byars US Patent 6,123,835, 2000 | 88 | 2000 |
| Biological production of liquid and gaseous fuels from synthesis gas KT Klasson, BB Elmore, JL Vega, MD Ackerson, EC Clausen, JL Gaddy Applied Biochemistry and Biotechnology 24, 857-873, 1990 | 84 | 1990 |
| Two phase hydroprocessing MD Ackerson, MS Byars US Patent 7,291,257, 2007 | 80 | 2007 |
| Two phase hydroprocessing MD Ackerson, MS Byars US Patent 7,291,257, 2007 | 76* | 2007 |
| Mass-transfer and kinetic aspects in continuous bioreactors usingRhodospirillum rubrum JP Cowger, KT Klasson, MD Ackerson, E Clausen, JL Caddy Applied Biochemistry and Biotechnology 34, 613-624, 1992 | 65 | 1992 |
| Mass-transfer and kinetic aspects in continuous bioreactors usingRhodospirillum rubrum JP Cowger, KT Klasson, MD Ackerson, E Clausen, JL Caddy Applied Biochemistry and Biotechnology 34, 613-624, 1992 | 65 | 1992 |
| Two phase hydroprocessing MD Ackerson, MS Byars US Patent 7,291,257, 2007 | 59 | 2007 |
| Two-stage acid hydrolysis of biomass M Ackerson, M Ziobro, JL Gaddy Biotechnol. Bioeng. Symp.;(United States) 11 (CONF-810554-), 1981 | 55 | 1981 |
| Control system method and apparatus for two phase hydroprocessing MD Ackerson, MS Byars US Patent 7,569,136, 2009 | 52 | 2009 |
| Biological production of methane from bituminous coal JC Volkwein, AL Schoeneman, EG Clausen, JL Gaddy, ER Johnson, ... Fuel Processing Technology 40 (2-3), 339-345, 1994 | 52 | 1994 |
| Bioreactors for synthesis gas fermentations KT Klasson, MD Ackerson, EC Clausen, JL Gaddy Resources, Conservation and Recycling 5 (2-3), 145-165, 1991 | 47 | 1991 |
| Heavy Fuel Oil Product MD Ackerson, MS Byars US Patent App. 16/511,177, 2019 | 32 | 2019 |
| Solvent extraction refining of petroleum products MD Ackerson, MS Byars US Patent 6,497,813, 2002 | 27 | 2002 |
| Biosolubilization and liquid fuel production from coal MD Ackerson, NL Johnson, M Le, EC Clausen, JL Gaddy Applied biochemistry and biotechnology 24, 913-928, 1990 | 22 | 1990 |
| Solvent extraction refining of petroleum products MD Ackerson, MS Byars US Patent 6,890,425, 2005 | 19 | 2005 |
| Petroleum-wax separation MD Ackerson, SH Arabshahi, RE Babcock US Patent 5,474,668, 1995 | 19 | 1995 |
| Petroleum-wax separation MD Ackerson, SH Arabshahi, RE Babcock US Patent 5,620,588, 1997 | 18 | 1997 |
