Patents by Inventor Gerald B. Borglum

Gerald B. Borglum 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).

  • Immobilization of microorganisms in gelled carrageenan
    Patent number: 4347320
    Abstract: Microorganisms are immobilized by mixing the microorganisms with an aqueous solution of kappacarrageenan and gelling the resultant mixture by the addition of an epihalohydrin: alkylene polyamine polymer having a mole ratio of from about 0.60:1 to 2.7:1 and a molecular weight of from 4,000 to 50,000 or by the addition of polyethyleneimine having a molecular weight of 300 to 50,000. Preferred microorganisms are Aspergillus niger and Saccharomyces cerevisiae which are respectively used to produce citric acid and ethanol.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: August 31, 1982
    Assignee: Miles Laboratories, Inc.
    Inventor: Gerald B. Borglum
  • Production of bacterial cell aggregate
    Patent number: 4212943
    Abstract: A bacterial cell aggregate having increased particle hardness is produced by contacting a mass of bacterial cells with a cross-linking reaction product of (1) glutaraldehyde, cyanuric halide or combinations thereof and (2) a specific cationic polymer obtained by polymerization of an epihalohydrin and an alkylene polyamine, recovering the resulting aggregate and drying the aggregate.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: July 15, 1980
    Assignee: Miles Laboratories, Inc.
    Inventor: Gerald B. Borglum