Patents by Inventor Chung-Rei Mao

Chung-Rei Mao 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).

  • In situ alkaline hydrolysis of subsurface contaminants using gaseous reactants
    Patent number: 9511399
    Abstract: The present invention includes methods and a system for treating a mass of contaminated media using ammonia. The methods include determining the amount of ammonia required for treatment using various calculation methods and combining the ammonia with air or another carrier gas to create a gas mixture. The methods and system utilize at least one injection well inserted into the contaminated media to deliver the gas mixture over a period ranging from approximately 1 week to approximately 8 weeks.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: December 6, 2016
    Assignee: The United States of America as Represented by The Secretary of The Army
    Inventors: Charles G. Coyle, Victor F. Medina, Scott A. Waisner, Chung-Rei Mao
  • IN SITU ALKALINE HYDROLYSIS OF SUBSURFACE CONTAMINANTS USING GASEOUS REACTANTS
    Publication number: 20160311001
    Abstract: The present invention includes methods and a system for treating a mass of contaminated media using ammonia. The methods include determining the amount of ammonia required for treatment using various calculation methods and combining the ammonia with air or another carrier gas to create a gas mixture. The methods and system utilize at least one injection well inserted into the contaminated media to deliver the gas mixture over a period ranging from approximately 1 week to approximately 8 weeks.
    Type: Application
    Filed: April 21, 2015
    Publication date: October 27, 2016
    Applicant: United States as Represented by the Secretary of the Army
    Inventors: Charles G. Coyle, Victor F. Medina, Scott A Waisner, Chung-Rei Mao
  • Thermal shade
    Patent number: 4574861
    Abstract: A thermal shade for limiting the amount of thermal energy which enters a structure through an opening therein is disclosed. The shade comprises a plurality of integrally formed elongated closed rectangular tubes which have a dead air space, are arranged in parallel relation to each other, and are connected on the side opposite the opening by living hinges. The shade also includes means for positioning shade to limit the thermal energy entering the opening.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: March 11, 1986
    Assignee: InterNorth, Inc.
    Inventor: Chung-Rei Mao