Patents by Inventor Nancy F. Halden

Nancy F. Halden 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).

  • Assay for Mycoplasma fermentans
    Patent number: 5073486
    Abstract: An assay for detecting the presence of Mycoplasma fermentans is disclosed, along with a diagnostic kit that uses the assay. The presence of Mycoplasma fermentans is indicated by the presence of the restriction endonuclease MfeI. This endonuclease recognizes the sequence CAATTG and cleaves between the C and the first A.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: December 17, 1991
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Warren J. Leonard, Julie B. Wolf, Nancy F. Halden
  • Novel restriction endonuclease
    Patent number: 4935367
    Abstract: A new restriction enzyme, Mfe I, has been discovered. Mfe I recognizes the sequence CAATTG and cuts at the recognition sequence C'AATTG and generates compatible cohesive ends with EcoRI cleaved fragments. Various utilities of the enzyme have been described.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: June 19, 1990
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Warren J. Leonard, Julie B. Wolf, Nancy F. Halden