Patents by Inventor Richard Leff

Richard Leff 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 using recombinant histidyl-tRNA synthetase
    Patent number: 5663066
    Abstract: Recombinant Histidyl tRNA synthetase produced by non-mammalian host cells is used in a sensitive assay to determine the presence of autoimmune diseases in mammals. Methods for isolating, cloning and expressing rHRS are described. In addition, a kit for determining the presence of an autoimmune disease is provided.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 2, 1997
    Assignees: The United States of America as represented by the Department of Health and Human Services, National Institutes of Health
    Inventors: Nina Raben, Ralph Nichols, Paul Plotz, Richard Leff
  • Assay using recombinant histidyl-tRNA synthetase
    Patent number: 5484703
    Abstract: Recombinant Histidyl tRNA synthetase produced by non-mammalian host cells is used in a sensitive assay to determine the presence of autoimmune diseases in mammals. Methods for isolating, cloning and expressing rHRS are described. In addition, a kit for determining the presence of an autoimmune disease is provided.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: January 16, 1996
    Assignee: United States of America
    Inventors: Nina Raben, Ralph Nichols, Paul Plotz, Richard Leff