Patents by Inventor Rita W. Mathews

Rita W. Mathews 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 for purifying antihemophilic factor
    Patent number: 4952675
    Abstract: Disclosed are methods for purifying proteins including AHF by column chromatography in the presence of additives including sugars and polyhydric alcohols which serve to increase the electrostatic forces on the surface of said proteins while decreasing the hydrophobicity of said proteins resulting in preparations of such proteins of high purity and/or resolution and/or recovery.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: August 28, 1990
    Assignee: New York University
    Inventors: Rita W. Mathews, Alan J. Johnson
  • Method for purifying antihemophilic factor
    Patent number: 4847362
    Abstract: The present invention relates to a high-recovery, high-resolution method for purifying antihemophilic factor by using column chromatography techniques in the presence of sugars, polyhydric alcohols, amino acids or salts.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: July 11, 1989
    Assignee: New York University
    Inventors: Rita W. Mathews, Alan J. Johnson
  • Method for purifying antihemophilic factor
    Patent number: 4743680
    Abstract: Disclosed are methods for purifying proteins including AHF by column chromatography in the presence of additives including sugars and polyhydric alcohols which serve to increase the electrostatic forces on the surface of said proteins while decreasing the hydrophobicity of said proteins resulting in preparations of such proteins of high purity and/or resolution and/or recovery.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: May 10, 1988
    Assignee: New York University
    Inventors: Rita W. Mathews, Alan J. Johnson