Patents by Inventor Joan K. Barkhaus

Joan K. Barkhaus 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).

  • Bioadhesive composition and patch
    Patent number: 8173113
    Abstract: A bioadhesive composition that adheres suitably to a mucosal surface and is capable of delivering drugs in sustained fashion, and a patch comprising the bioadhesive composition. Methods of using and processes for preparing the bioadhesive composition are also described.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: May 8, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew T. Scholz, Robert A. Scherrer, Nelda M. Marecki, Yen-Lane Chen, Joan K. Barkhaus
  • Transmucosal drug delivery device
    Patent number: 5780045
    Abstract: A transmucosal drug delivery device in the form of a sheet material. The device contains an acid-containing particulate polymeric resin dispersed throughout a polytetrafluoroethylene support matrix.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: July 14, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Roy L. McQuinn, Joan K. Barkhaus
  • Bioadhesive composition and patch
    Patent number: 5750134
    Abstract: A bioadhesive composition that adheres suitably to a mucosal surface and is capable of delivering drugs in sustained fashion, and a patch comprising the bioadhesive composition. Methods of using and processes for preparing the bioadhesive composition are also described.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: May 12, 1998
    Assignee: Riker Laboratories, Inc.
    Inventors: Matthew T. Scholz, Robert A. Scherrer, Nelda M. Marecki, Yen-Lane Chen, Joan K. Barkhaus
  • Bioadhesive composition and patch
    Patent number: 5750136
    Abstract: A bioadhesive composition that adheres suitably to a mucosal surface and is capable of delivering drugs in sustained fashion, and a patch comprising the bioadhesive composition. Methods of using and processes for preparing the bioadhesive composition are also described.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: May 12, 1998
    Assignee: Riker Laboratories, Inc.
    Inventors: Matthew T. Scholz, Robert A. Scherrer, Nelda M. Marecki, Yen-Lane Chen, Joan K. Barkhaus