Patents by Inventor Jeffrey R. Frankiewicz

Jeffrey R. Frankiewicz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Strain of Clostridium acetobutylicum and process for its preparation
    Patent number: 4521516
    Abstract: A novel asporogenic strain of Clostridium acetobutylicum is produced by growing a spore-forming strain in a continuous culturing reactor. Culturing is conducted at a dilution rate which prevents accumulation of butanol and acetone in the medium. Culturing at this dilution rate is continued until the asporogenic strain is obtained.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: June 4, 1985
    Assignee: CPC International Inc.
    Inventors: Christopher J. Lemme, Jeffrey R. Frankiewicz
  • Production of butanol by a continuous fermentation process
    Patent number: 4520104
    Abstract: An improved process for the continuous production of butanol by fermentation of carbohydrates with C. acetobutylicum is disclosed. This process combines continuous inoculum production at a high dilution rate and cycling the fermentation broth through a material which adsorbs butanol whereby a vigorous cell population is maintained in the fermentation reactor for extended periods of time.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: May 28, 1985
    Assignee: CPC International Inc.
    Inventors: Robert E. Heady, Jeffrey R. Frankiewicz
  • Process for preparing glucoamylase
    Patent number: 4169013
    Abstract: Glucoamylase is prepared by fermenting a microorganism capable of producing glucoamylase in a nutrient medium containing at least about 16% to about 25% of ground corn which has been liquefied by the action of heat, water and an alpha-amylase enzyme preparation. The alpha-amylase enzyme preparation is preferably derived from a microorganism of Bacillus licheniformis.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: September 25, 1979
    Assignee: CPC International Inc.
    Inventors: Jay A. Smith, Jeffrey R. Frankiewicz