Patents by Inventor Daniel A. Kunz

Daniel A. Kunz 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).

  • Process for inducing cytochrome P-450 enzymes in Streptomyces bacteria and determining the mutagenicity of chemicals
    Patent number: 5213971
    Abstract: A process for inducing cytochrome P-450 enzyme production in bacteria of the genus Streptomyces using inducers such as soybean flour, genistein or genistin is described. Uses for the cytochrome P-450 enzymes produced are also discussed as is a process for using genetically engineered Streptomyces to determine the mutagenicity of chemicals.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: May 25, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Daniel A. Kunz, Fateme S. Sariaslani
  • Bacterial hydroxylation of codeine
    Patent number: 4798792
    Abstract: A microbial process for converting codeine to 14-hydroxycodeine is provided. This process comprises aerobically culturing codeine with bacteria of the genus Streptomyces for at least about 3 days in a rich medium such as soybean flour medium.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: January 17, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Patricia A. Harder, Daniel A. Kunz