Patents by Inventor Robert J. Koprowski

Robert J. Koprowski 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).

  • Hydroformylation of aqueous formaldehyde using a rhodium-tricyclohexylphosphine catalyst system
    Patent number: 4847423
    Abstract: Aqueous formaldehyde is hydroformylated to glycol aldehyde in the presence of a rhodium-phosphine ligand complex catalyst in which the phosphine ligand is a trialkyl- or tricycloalkylphosphine and has a specified cone angle. A preferred phosphine ligand is tricyclohexylphosphine.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: July 11, 1989
    Assignee: Hoechst Celanese Corporation
    Inventors: Robert J. Koprowski, Jerry D. Unruh