Patents by Inventor Walter G. Fisher

Walter G. Fisher 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: 8974363
    Abstract: New photodynamic, topically-applicable medicaments and certain medical uses of such photodynamic medicaments for treatment of human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene. The halogenated xanthenes constitute a family of potent photosensitizers that become photoactivated upon illumination of the treatment site with visible wavelengths of light. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs; the mouth and digestive tract and related organs; the urinary and reproductive tracts and related organs; the respiratory tract and related organs; various other internal or external tissue surfaces, such as tissue surfaces exposed during surgery; and for treatment of a variety of conditions related to microbial or parasitic infection.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: March 10, 2015
    Assignee: Provectus Pharmatech, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, John Smolik, Eric A. Wachter, Walter G. Fisher
  • Patent number: 8470296
    Abstract: New intracorporeal radiodense medicaments and certain medical uses and methods for use of such high energy phototherapeutic medicaments for treatment of human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. The halogenated xanthenes constitute a family of potent radiosensitizers that become photoactivated upon irradiation of the treatment site with ionizing radiation.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: June 25, 2013
    Assignee: Provectus Pharmatech, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Publication number: 20110097280
    Abstract: New intracorporeal photodynamic medicaments and certain medical uses and methods for use of such photodynamic medicaments for treatment of disease in human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs, the mouth and digestive tract and related organs, the urinary and reproductive tracts and related organs, the respiratory tract and related organs, the circulatory system and related organs, the head and neck, the endocrine and lymphoreticular systems and related organs, various other tissues, such as connective tissues and various tissue surfaces exposed during surgery, as well as various tissues exhibiting microbial or parasitic infection.
    Type: Application
    Filed: December 30, 2010
    Publication date: April 28, 2011
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Patent number: 7863047
    Abstract: New intracorporeal photodynamic medicaments and certain medical uses and methods for use of such photodynamic medicaments for treatment of disease in human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs, the mouth and digestive tract and related organs, the urinary and reproductive tracts and related organs, the respiratory tract and related organs, the circulatory system and related organs, the head and neck, the endocrine and lymphoreticular systems and related organs, various other tissues, such as connective tissues and various tissue surfaces exposed during surgery, as well as various tissues exhibiting microbial or parasitic infection.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: January 4, 2011
    Assignee: Provectus Pharmatech, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Publication number: 20100076246
    Abstract: New intracorporeal radiodense medicaments and certain medical uses and methods for use of such high energy phototherapeutic medicaments for treatment of human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. The halogenated xanthenes constitute a family of potent radiosensitizers that become photoactivated upon irradiation of the treatment site with ionizing radiation.
    Type: Application
    Filed: August 19, 2009
    Publication date: March 25, 2010
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Publication number: 20080207746
    Abstract: New intracorporeal photodynamic medicaments and certain medical uses and methods for use of such photodynamic medicaments for treatment of disease in human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs, the mouth and digestive tract and related organs, the urinary and reproductive tracts and related organs, the respiratory tract and related organs, the circulatory system and related organs, the head and neck, the endocrine and lymphoreticular systems and related organs, various other tissues, such as connective tissues and various tissue surfaces exposed during surgery, as well as various tissues exhibiting microbial or parasitic infection.
    Type: Application
    Filed: April 25, 2008
    Publication date: August 28, 2008
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Patent number: 7402299
    Abstract: New intracorporeal photodynamic medicaments and certain medical uses and methods for use of such photodynamic medicaments for treatment of disease in human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs, the mouth and digestive tract and related organs, the urinary and reproductive tracts and related organs, the respiratory tract and related organs, the circulatory system and related organs, the head and neck, the endocrine and lymphoreticular systems and related organs, various other tissues, such as connective tissues and various tissue surfaces exposed during surgery, as well as various tissues exhibiting microbial or parasitic infection.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: July 22, 2008
    Assignee: Provectus Pharmatech, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Patent number: 7390668
    Abstract: New intracorporeal photodynamic medicaments and certain medical uses and methods for use of such photodynamic medicaments for treatment of disease in human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs, the mouth and digestive tract and related organs, the urinary and reproductive tracts and related organs, the respiratory tract and related organs, the circulatory system and related organs, the head and neck, the endocrine and lymphoreticular systems and related organs, various other tissues, such as connective tissues and various tissue surfaces exposed during surgery, as well as various tissues exhibiting microbial or parasitic infection.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: June 24, 2008
    Assignee: Provectus Pharmatech, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Publication number: 20080118578
    Abstract: New photodynamic, topically-applicable medicaments and certain medical uses of such photodynamic medicaments for treatment of human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene. The halogenated xanthenes constitute a family of potent photosensitizers that become photoactivated upon illumination of the treatment site with visible wavelengths of light. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs; the mouth and digestive tract and related organs; the urinary and reproductive tracts and related organs; the respiratory tract and related organs; various other internal or external tissue surfaces, such as tissue surfaces exposed during surgery; and for treatment of a variety of conditions related to microbial or parasitic infection.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 22, 2008
    Inventors: H. Craig Dees, Timothy C. Scott, John Smolik, Eric A. Wachter, Walter G. Fisher
  • Patent number: 7353829
    Abstract: A method and apparatus for the treatment of a particular volume of material, plant or animal tissue including the steps of treating the material plant or animal tissue with at least one photo-active agent, wherein the particular volume of the material, plant or animal tissue retains at least a portion of the at least one photo-active agent, and then treating the particular volume of the material plant or animal tissue with light sufficient to promote a multi-photon excitation of at least one of the at least one photo-active agent retained in the particular volume of the material, plant or animal tissue, wherein the at least one photo-active agent becomes active in the particular volume of the material, plant or animal tissue.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: April 8, 2008
    Assignee: Provectus Devicetech, Inc.
    Inventors: Eric A. Wachter, Walter G. Fisher, John T. Smolik
  • Patent number: 7346387
    Abstract: A method for the imaging of a particular volume of plant or animal tissue, wherein the plant or animal tissue contains at least one photo-active molecular agent. The method comprises the steps of treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of the photo-active molecular agent contained in the particular volume of the plant or animal tissue, photo-activating at least one of the at least one photo-active molecular agent in the particular volume of the plant or animal tissue, thereby producing at least one photo-activated molecular agent, wherein the at least one photo-activated molecular agent emits energy, detecting the energy emitted by the at least one photo-activated molecular agent, and producing a detected energy signal which is characteristic of the particular volume of plant or animal tissue.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: March 18, 2008
    Assignee: Provectus Devicetech, Inc.
    Inventors: Eric A. Wachter, Walter G. Fisher, H. Craig Dees
  • Patent number: 6991776
    Abstract: New intracorporeal radiodense medicaments and certain medical uses and methods for use of such high energy phototherapeutic medicaments for treatment of human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. The halogenated xanthenes constitute a family of potent radiosensitizers that become photoactivated upon irradiation of the treatment site with ionizing radiation.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: January 31, 2006
    Assignee: Xantech Pharmaceuticals, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Publication number: 20030125376
    Abstract: New intracorporeal radiodense medicaments and certain medical uses and methods for use of such high energy phototherapeutic medicaments for treatment of human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. The halogenated xanthenes constitute a family of potent radiosensitizers that become photoactivated upon irradiation of the treatment site with ionizing radiation.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 3, 2003
    Applicant: Photogen, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Patent number: 6525862
    Abstract: Methods and apparatus directed to using modulation to substantially improve detection limits in optical imaging, and to substantially improve the performance of various optical imaging systems. In an illustrative embodiment, such modulation is achieved using a modulated light source, a modulation frequency reference, a detector, and a demodulator. The modulated light source may comprise a light source emitting an inherently modulated output; alternately, this modulated light source may comprise a separate optical modulator and a continuous wave, modulated, or pulsed light source configured so as to impose a modulation in the output of light source. Methods for imaging using such modulation are also disclosed.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: February 25, 2003
    Assignee: Photogen, Inc.
    Inventors: Walter G. Fisher, Eric A. Wachter
  • Patent number: 6519076
    Abstract: Methods and apparatus directed to using modulation to substantially improve detection limits in optical imaging, and to substantially improve the performance of various optical imaging systems. In an illustrative embodiment, such modulation is achieved using a modulated light source, a modulation frequency reference, a detector, and a demodulator. The modulated light source may comprise a light source emitting an inherently modulated output; alternately, this modulated light source may comprise a separate optical modulator and a continuous wave, modulated, or pulsed light source configured so as to impose a modulation in the output of light source. Methods for imagine using such modulation are also disclosed.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: February 11, 2003
    Assignee: Photogen, Inc.
    Inventors: Walter G. Fisher, Eric A. Wachter
  • Publication number: 20020122236
    Abstract: Methods and apparatus directed to using modulation to substantially improve detection limits in optical imaging, and to substantially improve the performance of various optical imaging systems. In an illustrative embodiment, such modulation is achieved using a modulated light source, a modulation frequency reference, a detector, and a demodulator. The modulated light source may comprise a light source emitting an inherently modulated output: alternately, this modulated light source may comprise a separate optical modulator and a continuous wave, modulated, or pulsed light source configured so as to impose a modulation in the output of light source. Methods for imaging using such modulation are also disclosed.
    Type: Application
    Filed: January 10, 2002
    Publication date: September 5, 2002
    Applicant: Photogen, Inc.
    Inventors: Walter G. Fisher, Eric A. Wachter
  • Publication number: 20020033989
    Abstract: Methods and apparatus directed to using modulation to substantially improve detection limits in optical imaging, and to substantially improve the performance of various optical imaging systems. In an illustrative embodiment, such modulation is achieved using a modulated light source, a modulation frequency reference, a detector, and a demodulator. The modulated light source may comprise a light source emitting an inherently modulated output; alternately, this modulated light source may comprise a separate optical modulator and a continuous wave, modulated, or pulsed light source configured so as to impose a modulation in the output of light source. Methods for imaging using such modulation are also disclosed.
    Type: Application
    Filed: February 8, 2001
    Publication date: March 21, 2002
    Applicant: Photogen, Inc.
    Inventors: Walter G. Fisher, Eric A. Wachter
  • Publication number: 20020001567
    Abstract: New intracorporeal radiodense medicaments and certain medical uses and methods for use of such high energy phototherapeutic medicaments for treatment of human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. The halogenated xanthenes constitute a family of potent radiosensitizers that become photoactivated upon irradiation of the treatment site with ionizing radiation.
    Type: Application
    Filed: March 26, 2001
    Publication date: January 3, 2002
    Applicant: Photogen, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Publication number: 20010022970
    Abstract: New intracorporeal photodynamic medicaments and certain medical uses and methods for use of such photodynamic medicaments for treatment of disease in human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs, the mouth and digestive tract and related organs, the urinary and reproductive tracts and related organs, the respiratory tract and related organs, the circulatory system and related organs, the head and neck, the endocrine and lymphoreticular systems and related organs, various other tissues, such as connective tissues and various tissue surfaces exposed during surgery, as well as various tissues exhibiting microbial or parasitic infection.
    Type: Application
    Filed: March 6, 2001
    Publication date: September 20, 2001
    Applicant: Photogen, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Patent number: 6042603
    Abstract: An apparatus for the treatment of a particular volume of plant or animal tissue by treating the plant or animal tissue with at least one photo-active molecular agent, wherein the particular volume of the plant or animal tissue retains at least a portion of the at least one photo-active molecular agent, and then treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of at least one of the at least one photo-active molecular agent retained in the particular volume of the plant or animal tissue, wherein the at least one photo-active molecular agent becomes active in the particular volume of the plant or animal tissue.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 28, 2000
    Assignee: Photogen, Inc.
    Inventors: Walter G. Fisher, Eric A. Wachter, H. Craig Dees