Patents by Inventor Richard Wilker Korsmeyer

Richard Wilker Korsmeyer 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).

  • Use of interfacially-polymerized membranes in delivery devices
    Patent number: 5876752
    Abstract: Devices for controlled release of active substances in the form of tablets, capsules and beads comprised of a porous substructure surrounded by one or more interfacial membranes.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: March 2, 1999
    Assignee: Pfizer Inc.
    Inventors: Scott Max Herbig, Richard Wilker Korsmeyer, Avinash Govind Thombre