Patents by Inventor Charles A. Hentzen

Charles A. Hentzen 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).

  • Medical article having fluid control film
    Patent number: 7910790
    Abstract: The present invention provides medical articles having a fluid control film component which comprise a sheet having microchannels that permit directional flow of a liquid. Articles incorporating the fluid control film include: wound dressings, wound drains, tympanostomy fluid wicks, intravenous access site dressings, drug delivery dressings, and sweat collection patches.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: March 22, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Matthew T. Scholz, Steven B. Heinecke, Charles A. Hentzen
  • MEDICAL ARTICLE HAVING FLUID CONTROL FILM
    Publication number: 20100318072
    Abstract: The present invention provides medical articles having a fluid control film component which comprise a sheet having microchannels that permit directional flow of a liquid. Articles incorporating the fluid control film include: wound dressings, wound drains, tympanostomy fluid wicks, intravenous access site dressings, drug delivery dressings, and sweat collection patches.
    Type: Application
    Filed: August 23, 2010
    Publication date: December 16, 2010
    Inventors: Raymond P. Johnston, Matthew T. Scholz, Steven B. Heinecke, Charles A. Hentzen
  • Medical article having fluid control film
    Patent number: 7781639
    Abstract: The present invention provides medical articles having a fluid control film component which comprise a sheet having microchannels that permit directional flow of a liquid. Articles incorporating the fluid control film include: wound dressings, wound drains, tympanostomy fluid wicks, intravenous access site dressings, drug delivery dressings, and sweat collection patches.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: August 24, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Matthew T. Scholz, Steven B. Heinecke, Charles A. Hentzen
  • Drug delivery dressing having fluid control film
    Patent number: 6867342
    Abstract: The present invention provides drug delivery dressings having a fluid control film component that comprise a sheet having microchannels that permit directional flow of a liquid.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: March 15, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Matthew T. Scholz, Steven B. Heinecke, Charles A. Hentzen
  • Medical article having fluid control film
    Publication number: 20020128578
    Abstract: The present invention provides medical articles having a fluid control film component which comprise a sheet having microchannels that permit directional flow of a liquid. Articles incorporating the fluid control film include: wound dressings, wound drains, tympanostomy fluid wicks, intravenous access site dressings, drug delivery dressings, and sweat collection patches.
    Type: Application
    Filed: January 14, 2002
    Publication date: September 12, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Matthew T. Scholz, Steven B. Heinecke, Charles A. Hentzen
  • Medical article having fluid control film
    Patent number: 6420622
    Abstract: The present invention provides medical articles having a fluid control film component which comprise a sheet having microchannels that permit directional flow of a liquid. Articles incorporating the fluid control film include: wound dressings, wound drains, tympanostomy fluid wicks, intravenous access site dressings, drug delivery dressings, and sweat collection patches.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: July 16, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Matthew T. Scholz, Steven B. Heinecke, Charles A. Hentzen
  • Drug delivery dressing having fluid control film
    Publication number: 20020082540
    Abstract: The present invention provides drug delivery dressings having a fluid control film component that comprise a sheet having microchannels that permit directional flow of a liquid.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 27, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Matthew T. Scholz, Steven B. Heinecke, Charles A. Hentzen