Patents by Inventor Robert W. Eltz

Robert W. Eltz 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).

  • Use of phenoxyalkanes as precursors in penicillin V fermentation
    Patent number: 4250258
    Abstract: Penicillin V is prepared by culturing a penicillin-producing microorganism in a medium containing suitable sources of nitrogen, carbon and energy, and inorganic salts. One or more phenoxyalkanes of the formula ##STR1## wherein n is an integer from 6 to 13 are included within the medium as the sidechain precursor.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: February 10, 1981
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Laszlo J. Szarka, Robert W. Eltz
  • Use of phenylalkanes as precursors in benzylpenicillin fermentation
    Patent number: 4208481
    Abstract: Benzylpenicillin is prepared by culturing a penicillin-producing microorganism in a medium containing suitable sources of nitrogen, carbon and energy, and inorganic salts. One or more phenylalkanes of the formula ##STR1## wherein n is an integer from 6 to 13 are included within the medium as the sidechain precursor.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: June 17, 1980
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Laszlo J. Szarka, Robert W. Eltz
  • Ethanol as the major source of carbon and energy in penicillin production
    Patent number: 4164445
    Abstract: Ethanol is employed as the major source of carbon and energy in the fermentative biosynthesis of penicillins.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: August 14, 1979
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Brian T. Sheehan, Judith Baymiller, Robert W. Eltz