Patents by Inventor William Louis Barnard

William Louis Barnard 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).

  • Patent number: 8685005
    Abstract: A light delivery system to provide light treatment to a patient includes a catheter assembly having a plurality of light sources that transmit light towards a target site within a patient. In one embodiment, the light delivery system has a plurality of light sources mounted to a flexible transparent base that extends at least partially through a distal tip of the catheter assembly. The light sources can be wire bonded or mounted in a flip chip arrangement onto the base. In one embodiment to produce the distal tip, an array of light energy sources can be held by an array of holders of a fixture device. A vacuum is applied to secure each light energy source in a corresponding holder. While the vacuum is applied, the energy sources are electrically connected by wire bonding. The vacuum can be reduced or stopped thereby permitting removal of the light energy sources from the fixture device.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: April 1, 2014
    Assignee: Purdue Pharmaceutical Products L.P.
    Inventors: Jonathan S. Dahm, William Louis Barnard, James C. Chen, David B. Shine
  • Patent number: 7892268
    Abstract: An apparatus for directing light to an eye for exciting a photosensitizer includes a high output or super bright LED and an optic that receives light from the LED and concentrates the light so that it is nearly collimated. The LED is a single light source that is used for both therapy and for diagnostics or aiming.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: February 22, 2011
    Assignee: Light Sciences Oncology, Inc.
    Inventors: Gregory Lee Heacock, Wes Alan Williams, William Louis Barnard, Wayde Hampton Watters, Erik Ross Haugaard
  • Publication number: 20100145415
    Abstract: A light delivery system to provide light treatment to a patient includes a catheter assembly having a plurality of light sources that transmit light towards a target site within a patient. In one embodiment, the light delivery system has a plurality of light sources mounted to a flexible transparent base that extends at least partially through a distal tip of the catheter assembly. The light sources can be wire bonded or mounted in a flip chip arrangement onto the base. In one embodiment to produce the distal tip, an array of light energy sources can be held by an array of holders of a fixture device. A vacuum is applied to secure each light energy source in a corresponding holder. While the vacuum is applied, the energy sources are electrically connected by wire bonding. The vacuum can be reduced or stopped thereby permitting removal of the light energy sources from the fixture device.
    Type: Application
    Filed: October 11, 2007
    Publication date: June 10, 2010
    Inventors: Jonathan S. Dahm, William Louis Barnard, James C. Chen, David B. Shine
  • Publication number: 20070225777
    Abstract: An apparatus for directing light to an eye for exciting a photosensitizer includes a high output or super bright LED and an optic that receives light from the LED and concentrates the light so that it is nearly collimated. The LED is a single light source that is used for both therapy and for diagnostics or aiming.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 27, 2007
    Inventors: Gregory Lee Heacock, Wes Alan Williams, William Louis Barnard, Wayde Hampton Watters, Erik Ross Haugaard
  • Patent number: RE46504
    Abstract: A light delivery system to provide light treatment to a patient includes a catheter assembly having a plurality of light sources that transmit light towards a target site within a patient. In one embodiment, the light delivery system has a plurality of light sources mounted to a flexible transparent base that extends at least partially through a distal tip of the catheter assembly. The light sources can be wire bonded or mounted in a flip chip arrangement onto the base. In one embodiment to produce the distal tip, an array of light energy sources can be held by an array of holders of a fixture device. A vacuum is applied to secure each light energy source in a corresponding holder. While the vacuum is applied, the energy sources are electrically connected by wire bonding. The vacuum can be reduced or stopped thereby permitting removal of the light energy sources from the fixture device.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 8, 2017
    Assignee: PURDUE PHARMACEUTICAL PRODUCTS L.P.
    Inventors: Jonathan S. Dahm, William Louis Barnard, James C. Chen, David B. Shine