Patents by Inventor James E. Urban

James E. Urban 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).

  • Succinate-sensitive, nodulation-enhancing Rhizobium mutants for use with legumes
    Patent number: 4720461
    Abstract: Nodulation-enhancing mutants of Rhizobium species are prepared by growing a wild-type strain in a medium as the only carbon source at a sub-minimum concentration for normal growth, the mutant cells thus obtained are further selected by comparative nodulation to obtain mutants which produce two to three times as many nodules as the corresponding wild-type strain.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: January 19, 1988
    Assignee: Kansas State University Research Foundation
    Inventor: James E. Urban