Patents by Inventor William E. Clark, Jr.

William E. Clark, Jr. 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).

  • Surface and air sterilization using ultraviolet light and ultrasonic waves
    Patent number: 6576188
    Abstract: A method and apparatus for sterilizing organic or inorganic matter through simultaneous exposure to ultraviolet light energy and ultrasonic wave energy in a non-aqueous environment such as air. The method is suitable for use in a chamber or in a mass production assembly line setting. Purification of air is similarly accomplished using simultaneous exposure to ultraviolet light and ultrasonic energy waves.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: June 10, 2003
    Assignee: Spectrum Environmental Technologies, Inc.
    Inventors: Edward V. Rose, William E. Clark, Jr.
  • Surface and air sterilization using ultraviolet light and ultrasonic waves
    Patent number: 6171548
    Abstract: A method and apparatus for sterilizing organic or inorganic matter through simultaneous exposure to ultraviolet light energy and ultrasonic wave energy in a non-aqueous environment such as air. The method is suitable for use in a chamber or in a mass production assembly line setting. Purification of air is similarly accomplished using simultaneous exposure to ultraviolet light and ultrasonic energy waves.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: January 9, 2001
    Assignee: Spectrum Environmental Technologies, Inc.
    Inventors: Edward V. Rose, William E. Clark, Jr.
  • Sterilization using ultraviolet light and ultrasonic waves
    Patent number: 6090346
    Abstract: A sterilization method for organic or inorganic matter which combines exposure to ultraviolet light and ultrasonic waves. The ultrasound waves are applied "dry" in that the object is not immersed into a liquid solution during the exposure cycle. This makes the sterilization method suitable for use in a mass production assembly line setting. Exposure of the object to the ultraviolet light and ultrasound waves can occur simultaneously, sequentially, or in alternating fashion.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: July 18, 2000
    Assignee: Spectrum Environmental Technologies, Inc.
    Inventors: Edward V. Rose, William E. Clark, Jr.