Patents by Inventor Via K. Azanda

Via K. Azanda 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).

  • Method of preparing seeding material for production of citric acid
    Patent number: 4380583
    Abstract: Disclosed is a method of preparing a seeding material for the production of citric acid by cultivating spores of a fungus on a nutrient medium containing carbon and nitrogen sources and mineral salts and by separating spores from the nutrient medium.The fungus used is the strain Aspergillus niger R-3 selected from the strain Aspergillus niger -119 by the stepwise action on it of ethyleneimine, N-nitrosomethylurea and ultraviolet radiation.
    Type: Grant
    Filed: April 8, 1981
    Date of Patent: April 19, 1983
    Inventors: Roman Y. Karklin, Alma A. Rumba, Via K. Azanda