Patents by Inventor Eriks Leitis

Eriks Leitis 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).

  • Decomposition of volatile ogranic halogenated compounds contained in gases and aqueous solutions
    Patent number: 4941957
    Abstract: The invention is a method and apparatus for rate enhanced decomposition of volatile organic halogenated compounds present in gases and aqueous solutions. Volatile organic halogenated compounds contained in aqueous solution are removed by volatilizing the compounds from the solution to a gaseous carrier and passing the gaseous carrier through a porous adsorbent bed of silica gel while irradiating the bed with ultraviolet light and/or exposing the bed to ozone. Volatile organic halogenated compounds in a gas are removed by passing the gas through a porous adsorbent bed of silica gel while irradiating the bed with ultraviolet light and/or exposing the bed to ozone.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: July 17, 1990
    Assignee: Ultrox International
    Inventors: Jack D. Zeff, Eriks Leitis
  • Oxidation of toxic compounds in water
    Patent number: 4849114
    Abstract: A method of oxidizing toxic compounds including halogenated and/or partially oxygenated hydrocarbons and hydrazine and hydrazine derivatives in aqueous solutions by using in combination ozone, hydrogen peroxide and ultraviolet radiation is improved.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: July 18, 1989
    Assignee: Ultrox International
    Inventors: Jack D. Zeff, Eriks Leitis
  • Oxidation of organic compounds in water
    Patent number: 4792407
    Abstract: A method of oxidizing organic compounds in aqueous solutions by using in combination ozone, hydrogen peroxide and ultraviolet radiation is provided.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: December 20, 1988
    Assignee: Ultrox International
    Inventors: Jack D. Zeff, Eriks Leitis
  • Decomposition of volatile organic halogenated compounds contained in gases
    Patent number: 4780287
    Abstract: The invention is a method and apparatus for rate enhanced decomposition of volatile organic halogenated compounds. In the invention a stream of gas carrying these volatile organic halogenated compounds is passed through a porous bed of silica gel, preferably, or alternatively through quartz chips, and the bed is thereafter irradiated with ultraviolet light. If, after prolonged use the rate of decomposition declines, the decomposing activity can be fully restored by heating and/or passing nitrogen gas through the bed of silica gel. It has further been discovered that elevating the temperature of a solution of organic halogenated compounds, organic acids, or aryl alcohols, increases the oxidation rate of these compounds wherein irradiation of solution with ultraviolet light and addition of ozone to solution perform the oxidation. It has also been discovered that elevating the temperature of a solution of short chain alcohols, aryl alcohols, organic acids or aldehydes in solution, wherein addition of H.sub.2 O.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: October 25, 1988
    Assignee: Ultrox International
    Inventors: Jack D. Zeff, Eriks Leitis