Patents by Inventor Philip T. Chen

Philip T. Chen 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).

  • Oxidative evaporation process and apparatus
    Patent number: 6942808
    Abstract: The present invention is an oxidative reaction that converts organic content in the wastewater into harmless CO2 and H2O. The heat produced by the oxidative reaction evaporates the water, thereby concentrating the remaining solids in solution. The final product from the process is the crystal form of sodium carbonates and other oxidized salts carried in by the raw wastewater.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: September 13, 2005
    Inventor: Philip T. Chen
  • Oxidative evaporation process and apparatus
    Publication number: 20030217979
    Abstract: The present invention is an oxidative reaction that converts organic content in the wastewater into harmless CO2 and H2O. The heat produced by the oxidative reaction evaporates the water, thereby concentrating the remaining solids in solution. The final product from the process is the crystal form of sodium carbonates and other oxidized salts carried in by the raw wastewater.
    Type: Application
    Filed: January 22, 2003
    Publication date: November 27, 2003
    Inventor: Philip T. Chen
  • Oxidative evaporation process and apparatus
    Patent number: 4795568
    Abstract: An oxidative evaporation process for treating waste water or other aqueous solutions containing organics or reduced forms of inorganics is described. The process relies upon excessive amounts of pressurized oxygen gas to both oxidize the solution and to increase the solution's evaporation rate. The oxidized liquid effluent from a reactor undergoes a series of flashing steps until a saturated solution is produced which readily crystallizes upon cooling.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: January 3, 1989
    Inventor: Philip T. Chen