Patents by Inventor Sandra Hilliker

Sandra Hilliker 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).

  • Expression of recombinant polypeptides with improved purification
    Patent number: 5322930
    Abstract: An improved method for expressing peptides as fusion proteins, uses a carrier for a heterologous peptide to provide a fusion protein having a high pI. The high isoelectric point facilitates separation of the fusion protein from all other host cell proteins, and separation of the carrier from the peptide after cleavage.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: June 21, 1994
    Assignee: Scios Nova Inc.
    Inventors: S. Joseph Tarnowski, Sandra Hilliker, W. Scott Willett
  • Expression of recombinant polypeptides with improved purification
    Patent number: 5202239
    Abstract: An improved method for expressing peptides as fusion proteins, uses a carrier for a heterologous peptide to provide a fusion protein having a high pI. The high isoelectric point facilitates separation of the fusion protein from all other host cell proteins, and separation of the carrier from the peptide after cleavage.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: April 13, 1993
    Assignee: Scios Nova Inc.
    Inventors: S. Joseph Tarnowski, Sandra Hilliker, W. Scott Willett