Patents by Inventor Deborah Ann Ansaldi

Deborah Ann Ansaldi 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).

  • Separation of polypeptide monomers
    Publication number: 20040116674
    Abstract: A method is disclosed for separating a polypeptide monomer from a mixture comprising dimers and/or multimers. The method comprises applying the mixture to either a cation-exchange chromatography resin or an anion-exchange chromatography resin and eluting the mixture at a gradient of about 0-1 M of an elution salt, wherein the monomer is separated from the dimers and/or multimers present in the mixture.
    Type: Application
    Filed: August 15, 2003
    Publication date: June 17, 2004
    Applicant: Genentech, Inc.
    Inventors: Deborah Ann Ansaldi, Philip Lester
  • Separation of polypeptide monomers
    Patent number: 6620918
    Abstract: A method is disclosed for separating a polypeptide monomer from a mixture comprising dimers and/or multimers. The method comprises applying the mixture to either a cation-exchange chromatography resin or an anion-exchange chromatography resin and eluting the mixture at a gradient of about 0-1 M of an elution salt, wherein the monomer is separated from the dimers and/or multimers present in the mixture.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: September 16, 2003
    Assignee: Genentech, Inc.
    Inventors: Deborah Ann Ansaldi, Philip Lester
  • SEPARATION OF POLYPEPTIDE MONOMERS
    Publication number: 20020010319
    Abstract: A method is disclosed for separating a polypeptide monomer from a mixture comprising dimers and/or multimers. The method comprises applying the mixture to either a cation-exchange chromatography resin or an anion-exchange chromatography resin and eluting the mixture at a gradient of about 0-1 M of an elution salt, wherein the monomer is separated from the dimers and/or multimers present in the mixture.
    Type: Application
    Filed: May 26, 1999
    Publication date: January 24, 2002
    Applicant: Genentech, Inc.
    Inventors: DEBORAH ANN ANSALDI, PHILIP LESTER