Patents by Inventor Deqing Zhao

Deqing Zhao 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).

  • Cigarette paper additive having harm reduction function and application thereof
    Patent number: 9675104
    Abstract: A cigarette paper additive having harm reduction function and application thereof are provided. The additive contains alkali metal salts of butane tetracarboxylic acid or cyclobutane tetracarboxylic acid which are prepared by reacting the butane tetracarboxylic acid or cyclobutane tetracarboxylic acid with alkali. The application thereof is evenly adding the aqueous additive solution at different concentrations to cigarette paper by a metering rod-type film transfer sizing machine in a sizing section of the cigarette paper production, and the produced cigarette paper is used for cigarette production that can effectively reduce release of CO, phenol and tar in the mainstream smoke, and has better effects of harm reduction and tar reduction. The method of the invention is easy, does not need to alter the existing cigarette paper production process, and has low cost and higher industrial application value.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: June 13, 2017
    Assignees: CHINA TOBACCO SICHUAN INDUSTRIAL CO., LTD., CHINA TOBACCO CHONGQING INDUSTRIAL CO., LTD.
    Inventors: Ya Dai, Deqing Zhao, Kefu Chen, Kunyan Chen, Lijun Zhu, Yufeng Sun, Lanlan Tan
  • CIGARETTE PAPER ADDITIVE HAVING HARM REDUCTION FUNCTION AND APPLICATION THEREOF
    Publication number: 20150201671
    Abstract: A cigarette paper additive having harm reduction function and application thereof are provided. The additive contains alkali metal salts of butane tetracarboxylic acid or cyclobutane tetracarboxylic acid which are prepared by reacting the butane tetracarboxylic acid or cyclobutane tetracarboxylic acid with alkali. The application thereof is evenly adding the aqueous additive solution at different concentrations to cigarette paper by a metering rod-type film transfer sizing machine in a sizing section of the cigarette paper production, and the produced cigarette paper is used for cigarette production that can effectively reduce release of CO, phenol and tar in the mainstream smoke, and has better effects of harm reduction and tar reduction. The method of the invention is easy, does not need to alter the existing cigarette paper production process, and has low cost and higher industrial application value.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 23, 2015
    Inventors: Ya Dai, Deqing Zhao, Kefu Chen, Kunyan Chen, Lijun Zhu, Yufeng Sun, Lanlan Tan