Patents by Inventor Michael K. Robertson

Michael K. Robertson 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).

  • Fluid purification
    Patent number: 5032241
    Abstract: A purifier for water or air removes, reduces or detoxifies organic pollutants therefrom by causing the fluid to contact a matrix having surfaces with which a fixed anatase (TiO.sub.2) or other photoreactive metal semiconductor material is bonded, in the presence of light of wavelength that will activate the material.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: July 16, 1991
    Assignee: Nutech Energy Systems Inc.
    Inventors: Michael K. Robertson, Robert B . Henderson
  • Fluid purification
    Patent number: 4966759
    Abstract: A purifier for water or air removes, reduces or detoxifies organic pollutants therefrom by causing the fluid to contact a matrix having surfaces with which a fixed anatase (TiO.sub.2) or other photoreactive metal semiconductor material is bonded, in the presence of light of a wavelength that will activate the material.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: October 30, 1990
    Assignee: Nutech Energy Systems Inc.
    Inventors: Michael K. Robertson, Robert B. Henderson
  • Fluid purification
    Patent number: 4892712
    Abstract: A purifier for water or air removes, reduces or detoxifies organic pollutants therefrom by causing the fluid to contact a matrix having surfaces with which a fixed anatase (TiO.sub.2) or other photoreactive metal semiconductor material is bonded, in the presence of light of a wavelength that will activate the material.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: January 9, 1990
    Assignee: Nutech Energy Systems Inc.
    Inventors: Michael K. Robertson, Robert B. Henderson
  • Manhole step
    Patent number: D304376
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: October 31, 1989
    Assignee: Lane International Corporation
    Inventor: Michael K. Robertson