Patents by Inventor Xiaoqing FANG

Xiaoqing FANG 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).

  • Environmentally friendly near-azeotropic mixed refrigerant
    Patent number: 11549042
    Abstract: Disclosed is an environmentally friendly near-azeotropic mixed refrigerant, consisting essentially of HFO-1234 yf, HFE-143a and a third component, with the mass percentage of each component being: 70%-98% of HFO-1234yf, 1%-15% of HFE-143a and 1%-15% of the third component. The refrigerant of the present invention is environmentally friendly, excellent in thermodynamic properties, can directly realize drop-in substitution in an original system using HFC-134a without changing any parts, and can be used as a long term alternative to HFC-134a.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: January 10, 2023
    Assignees: ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI-TECH CO., LTD., SINOCHEM LANTIAN CO., LTD.
    Inventors: Zhikai Guo, Pinzan Xie, Xiaoqing Fang
  • ENVIRONMENTALLY FRIENDLY NEAR-AZEOTROPIC MIXED REFRIGERANT
    Publication number: 20210395591
    Abstract: Disclosed is an environmentally friendly near-azeotropic mixed refrigerant, consisting essentially of HFO-1234 yf, HFE-143a and a third component, with the mass percentage of each component being: 70%-98% of HFO-1234yf, 1%-15% of HFE-143a and 1%-15% of the third component. The refrigerant of the present invention is environmentally friendly, excellent in thermodynamic properties, can directly realize drop-in substitution in an original system using HFC-134a without changing any parts, and can be used as a long term alternative to HFC-134a.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Zhikai GUO, Pinzan XIE, Xiaoqing FANG
  • Environmentally friendly near-azeotropic mixed refrigerant
    Patent number: 11136483
    Abstract: Disclosed is an environmentally friendly near-azeotropic mixed refrigerant, consisting essentially of HFO-1234 yf, HFE-143a and a third component, with the mass percentage of each component being: 70%-98% of HFO-1234yf, 1%-15% of HFE-143a and 1%-15% of the third component. The refrigerant of the present invention is environmentally friendly, excellent in thermodynamic properties, can directly realize drop-in substitution in an original system using HFC-134a without changing any parts, and can be used as a long term alternative to HFC-134a.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: October 5, 2021
    Assignees: ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI-TECH CO., LTD., SINOCHEM LANTIAN CO., LTD.
    Inventors: Zhikai Guo, Pinzan Xie, Xiaoqing Fang
  • ENVIRONMENTALLY FRIENDLY NEAR-AZEOTROPIC MIXED REFRIGERANT
    Publication number: 20200339854
    Abstract: Disclosed is an environmentally friendly near-azeotropic mixed refrigerant, consisting essentially of HFO-1234 yf, HFE-143a and a third component, with the mass percentage of each component being: 70%-98% of HFO-1234yf, 1%-15% of HFE-143a and 1%-15% of the third component. The refrigerant of the present invention is environmentally friendly, excellent in thermodynamic properties, can directly realize drop-in substitution in an original system using HFC-134a without changing any parts, and can be used as a long term alternative to HFC-134a.
    Type: Application
    Filed: July 9, 2020
    Publication date: October 29, 2020
    Inventors: Zhikai GUO, Pinzan XIE, Xiaoqing FANG
  • Environmentally friendly near-azeotropic mixed refrigerant
    Patent number: 10752819
    Abstract: Disclosed is an environmentally friendly near-azeotropic mixed refrigerant, consisting essentially of HFO-1234 yf, HFE-143a and a third component, with the mass percentage of each component being: 70%-98% of HFO-1234yf, 1%-15% of HFE-143a and 1%-15% of the third component. The refrigerant of the present invention is environmentally friendly, excellent in thermodynamic properties, can directly realize drop-in substitution in an original system using HFC-134a without changing any parts, and can be used as a long term alternative to HFC-134a.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: August 25, 2020
    Assignees: Zhejiang Lantian Environmental Protection Hi-Tech Co., Ltd., Sinochem Lantian Co., Ltd.
    Inventors: Zhikai Guo, Pinzan Xie, Xiaoqing Fang
  • ENVIRONMENTALLY FRIENDLY NEAR-AZEOTROPIC MIXED REFRIGERANT
    Publication number: 20190112513
    Abstract: Disclosed is an environmentally friendly near-azeotropic mixed refrigerant, consisting essentially of HFO-1234 yf, HFE-143a and a third component, with the mass percentage of each component being: 70%-98% of HFO-1234yf, 1%-15% of HFE-143a and 1%-15% of the third component. The refrigerant of the present invention is environmentally friendly, excellent in thermodynamic properties, can directly realize drop-in substitution in an original system using HFC-134a without changing any parts, and can be used as a long term alternative to HFC-134a.
    Type: Application
    Filed: December 11, 2018
    Publication date: April 18, 2019
    Inventors: Zhikai GUO, Pinzan XIE, Xiaoqing FANG
  • ENVIRONMENTALLY FRIENDLY NEAR-AZEOTROPIC MIXED REFRIGERANT
    Publication number: 20160137896
    Abstract: Disclosed is an environmentally friendly near-azeotropic mixed refrigerant, consisting essentially of HFO-1234 yf, HFE-143a and a third component, with the mass percentage of each component being: 70%-98% of HFO-1234yf, 1%-15% of HFE-143a and 1%-15% of the third component. The refrigerant of the present invention is environmentally friendly, excellent in thermodynamic properties, can directly realize drop-in substitution in an original system using HFC-134a without changing any parts, and can be used as a long term alternative to HFC-134a.
    Type: Application
    Filed: June 20, 2014
    Publication date: May 19, 2016
    Applicant: ZHEJIANG LANTIAN ENVIROMENTAL PROTECTION HI-TECH CO., LTD.
    Inventors: Zhikai GUO, Pinzan XIE, Xiaoqing FANG