Patents by Inventor Randolph S. Porubcan

Randolph S. Porubcan 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).

  • Preparation of culture concentrates for direct vat set cheese production
    Patent number: 4115199
    Abstract: Concentrated bacterial cultures for direct vat inoculation of milk batches are prepared by centrifugation of the fermented culture in the presence of dissolved polyphosphate. Improved cell recovery and higher cell concentrations are obtained.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: September 19, 1978
    Assignee: Chr. Hansen's Laboratory, Inc.
    Inventors: Randolph S. Porubcan, Robert L. Sellars