Patents by Inventor Siiri E. Iismaa

Siiri E. Iismaa 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).

  • Rhizobial ferredoxin genes
    Patent number: 5059533
    Abstract: Rhizobial ferredoxin genes and proteins are provided. Rhizobial ferredoxins are useful to enhance the nitrogenase systems of rhizobia. Useful rhizobial ferredoxin diagnostic segments are also provided comprising DNA sequences encoding the characteristic ferredoxin cysteine residue patterns. Exemplied rhizobial ferredoxin genes are fixX of Rhizobium trifolii and Rhizobium meliloti Between fixC and nifA, fixY of Rhizobium meliloti down stream from nifB, and frxA of Bradyrhizobium japonicum.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: October 22, 1991
    Assignee: Lubrizol Genetics, Inc.
    Inventors: John M. Watson, Siiri E. Iismaa, Helmut Reilander, Alfred Puhler, Hauke Hennecke