Patents by Inventor Frich Hochuli

Frich Hochuli 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).

  • Metal chelate resins
    Patent number: 5047513
    Abstract: Metal chelate resins whose complexed nitrilotriacetic acid residues are bound to a carrier matrix via a spacer and which are suitable for metal chelate chromatography of proteins, especially those which contain neighboring histidines.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: September 10, 1991
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Heinz Dobeli, Frich Hochuli
  • Metal chelate resins
    Patent number: 4877830
    Abstract: Metal chelate resins whose complexed nitrilotriacetic acid residues are bound to a carrier matrix via a spacer and which are suitable for metal chelate chromatography of proteins, especially those which contain neighboring histidines.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: October 31, 1989
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Heinz Dobeli, Frich Hochuli