Patents by Inventor Christopher J. Libbey

Christopher J. Libbey 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).

  • Foam pads useful in wound management
    Patent number: 5324252
    Abstract: The present invention relates to a method of dressing a wound using an open-celled foam pad prepared from a foam sheet impregnated with a water curable, isocyanate functional, polyurethane prepolymer resin. The pad can concurrently function as an orthotic pad. The pad exhibits the ability to wick wound exudate from the site of the wound, and also exhibits desirable conformability and comfort in use.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: June 28, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Christopher J. Libbey, Lawrence R. Bramlage, Timothy C. Sandvig
  • Foam pads useful in wound management
    Patent number: 5203764
    Abstract: The present invention relates to a method of dressing a wound using an open-celled foam pad prepared from a foam sheet impregnated with a water curable, isocyanate functional, polyurethane prepolymer resin. The pad can concurrently function as an orthotic pad. The pad exhibits the ability to wick wound exudate from the site of the wound, and also exhibits desirable conformability and comfort in use.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: April 20, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Christopher J. Libbey, Lawrence R. Bramlage, Timothy C. Sandvig
  • High elastic modulus bandage
    Patent number: 4984584
    Abstract: A high elastic modulus, cohesive bandage comprising partially extended spaced aligned elastic yarns sealed between two thin nonwoven fibrous webs by means of a polymeric binder is disclosed. The bandage provides joint support without imposing undue constriction. A method of supporting and/or providing compressive force to a mammalian limb including supporting suspensory ligaments and flexor tendons in the leg of a horse is also described.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: January 15, 1991
    Assignee: Riker Laboratories, Inc.
    Inventors: Paul E. Hansen, Christopher J. Libbey
  • Use of sorbent sheet materials as evaporative coolants
    Patent number: 4953544
    Abstract: A method of evaporative cooling using sorbent sheet materials comprising a fibrous web that includes entangled fibers and a solid high sorbency liquid-sorbent polymeric material is disclosed. A sorbent sheet material useful for administering cold water therapy is also described.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: September 4, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Paul E. Hansen, Thomas I. Insley, Christopher J. Libbey
  • Use of sorbent sheet materials as evaporative coolants
    Patent number: 4921743
    Abstract: A method of evaporative cooling using sorbent sheet materials comprising a fibrous web that includes entangled fibers and a solid high sorbency liquid-sorbent polymeric material is disclosed. A sorbent sheet material useful for administering cold water therapy is also described.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: May 1, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Paul E. Hansen, Thomas I. Insley, Christopher J. Libbey