ButanolFermentation Name Year Description Patent No Auguste Fernbach         1912 Manufacture and production of a nutrient medium for use in fermentation processes 1,044,446 Auguste Fernbach         1912 Manufacture and production of nutrient medium for use in fermentation processes 1,044,447 Joseph Scheckenbach   1914 Process of manufacturing fusel-oil 1,118,238 John Northrup            1919 Process for the production of acetone 1,293,172 Charles Weizmann       1919 Production of acetone and alcohol by bacteriological processes 1,315,585 Charles Weizmann      1920 Fermentation process for the production of acetone and butyl alcohol 1,329,214 George Horton              1922 Process of producing Butyl alcohol and acetone by fermentation 1,427,595 Charles Weizmann      1922 Fermentation process for the production of acetone and butyl alcohol 1,437,697 Guy Robinson             1924 Production of butyl alcohol and acetone by the fermentation of molasses 1,510,526 George Freiberg           1925 Process for producing acetone and butyl alcohol 1,537,597 Lewis Waters                1925 Fermentation Process 1,546,694 Eloi Ricard                 1925 Manufacture of acetone and butyl alcohol by fermentation 1,550,746 Edward Halford           1925 Process for the manufacture of alcohols and acetone 1,550,928 David Legg                  1926 Process for the production of butyl alcohol and acetone 1,582,408 Edwin Pike                  1928 Process of producing acetone and butyl alcohol by fermentation 1,655,435 Elliott Ross Weyer       1928 Fermentation process 1,696,022 Aguste Fernbach           1932 Acetono-butylic fermentation process 1,854,895 Frederik Gerretsen       1932 Biological production of butyl alcohol and acetone 1,858,808 Carl Haner                   1932 Process of producing butyl alcohol and acetone  and ethyl alcohol 1,885,096 Henry Brougham         1933 Production of Butyl Alcohol and acetone by fermentation 1,898,961 Alexander Izsak           1933 Process of producing butyl alcohol 1,908,361 David Legg                   1933 Production of butyl alcohol and acetone by fermentation 1,913,164 Hugo Wertheim            1933 Process for the simultaneous production of butyl alcohol and acetone by fermentation 1,917,676 Hugo Wertheim            1933 Process for producing butyl alcohol and acetone by fermentation 1,917,677 Henry Hutchinson        1933 Production of butyl alcohol and acetone by fermentation 1,928,379 James Loughlin          1935 Production of butyl alcohol and acetone by fermentation 1,992,921 Alexander Izsak            1935 Process for producing butyl alcohol and acetone 2,016,112 Winfred McCutchan     1935 Production of butyl alcohol by fermentation 2,023,087 David Legg                  1935 Production of butyl alcohol by fermentation 2,023,368 Hugh  Stiles                  1935 Butyl-Acetonic fermentation process 2,023,374 Cornellus Arzberger     1936 Process for the production of butyl alcohol by fermentation 2,050,219 David Legg                   1936 Process for controlling hydrogen ion concentration of butyl alcohol fermentation mashes 2,063,449 John Woodruff              1937 Process of producing butyl alcohol 2,089,522 David Legg                   1937 Process of producing butyl alcohol 2,089,562 James Loughlin            1937 Manufacture of butyl alcohol, acetone and isopropyl alcohol 2,096,377 Hugh Stiles                   1937 Fermentation of amylaceous materials 2,098,199 Hugh Stiles                  1937 Butyl-Acetonic Fermentation Process 2,098,200 Elizabeth McCoy          1938 Production of butyl alcohol and acetone by fermentation 2,110,109 David Legg                   1938 Butyl alcohol fermentation 2,132,358 Horace Hall                   1939 Fermentation process for solvent manufacture 2,147,487 Alfred Freising              1939 Production of butanol and acetone by the fermentation of whey 2,166,047 Frank Hildebrandt        1939 Fermentation process 2,169,244 Frank Hildebrandt        1939 Butyl acetone fermentation process 2,169,246 Newton Cunningham 1978 Apparatus for production alcohol from grains of starch materials 4,108,052 Sidney Levy 1984 Continuous Process for producing N-butanol employing anaerbic fermentation 4,424,275 Robert Heady 1985 Production of Butanol by a continuous fermentation process 4,520,104 Shey Bergstrom 1985 Production of Butanol by fermentation in the presence of cocultures of Clostridium 4,539,293 Christopher Lemme 1985 Strain of C.a. and process for its preparation 4,521,516 Rathin Datta 1985 Production of butanol by fermentation in the presence of carbon monoxide 4,560,658 Rathin Datta 1987 Utilization of zylan and corn fiber for direct fermentation by C. a. 4,649,112 Gary Husted 1988 Method for producing butanol by fermentation 4,777,135 Monique Hermann 1988 Production of C.a. mutants of high butanol and acetone productivity, the resultant mutants and the use of these mutants in the joint production of butanol and acetone 4,757,010 Affonso DaSilva Telles 1989 Continuous process of optimized fermetation for the production of alcohol 4,889,805 Michael Czyko 1989 Continuous process for preparing organic acids by fermentation 4,882,277 J.H. Hsieh 1990 Continuous fermentation process for aromatic hydrocarbon bioconversions 4,968,612 Robert Driscoll 1991 Process for the separation of butanol and butoxyacetaldehyde 4,986,885 Daniel Tedder 1991 Alcohol recovery by continusou fermentation 5,036,005 David Glassner 1991 Process for the fermentation production of acetone, butanol and ethanol 5,063,156 Mahendra Jain 1993 Mutant strain of C.a. and process for making butanol 5,192,673 Lanny Robbins 1994 Method for removing dissolved immiscible organics from an aqueous medium at ambient temperatures 5,294,303 5,563,069 5,753,474