Patents by Inventor Tiejie Wang

Tiejie Wang 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).

  • Publication number: 20210025815
    Abstract: Provided is a near-infrared spectroscopy-based method for chemical pattern recognition of the authenticity of the traditional Chinese medicine Gleditsiae Spina. The method uses the combination of a near-infrared spectroscopy acquisition method, a 1st derivative pretreatment method and a successive projection algorithm, a Kennard-Stone algorithm and a marching algorithm to perform chemical pattern recognition on the authenticity of the Gleditsiae Spina. The results of the pattern recognition method are accurate and reliable, and Gleditsiae Spina and counterfeits thereof can be accurately distinguished. The present application is the first to establish a method for the chemical pattern recognition of the quality of Gleditsiae Spina based on near-infrared spectroscopy, and can accurately distinguish between Gleditsiae Spina and counterfeits thereof, and provides scientific basis for the quality evaluation of Gleditsiae Spina.
    Type: Application
    Filed: April 1, 2019
    Publication date: January 28, 2021
    Inventors: Tiejie WANG, Lijun WANG, Yan YAN, Jue WANG, Guo YIN, Kun JIANG, Jing LI, Yang WANG, Yin HUI
  • Patent number: 9217733
    Abstract: A method and system for detecting residual poison in human body are provided. Using the disclosed HPLC-Chip-mass spectrometry (MS)/MS and/or HPLC-MS/MS method to detect the residual poison, the method of the present invention mainly includes sample preparation, liquid chromatography and mass spectrometry. The method of the present invention has advantages of low sample size, high specificity, low detection limit, high sensitivity, low cost, high accuracy and stability, etc.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: December 22, 2015
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Karl Wah Keung Tsim, Tina Tingxia Dong, Kevin Yue Zhu, Ka Wing Leung, Tiejie Wang
  • Patent number: 9005986
    Abstract: A method for rapidly measuring melatonin adulteration of Chinese patent medicines and healthcare foods comprises: (1) extracting melatonin added to a Chinese patent medicine or healthcare food by using ethyl acetate; and (2) adding p-dimethylaminocinnamaldehyde to the extracted solution, and observing color. The method is rapid, simple and convenient, has strong specificity, high accuracy, reaction sensitivity, and a wide application range, and is applicable to on-site detection of melatonin adulteration of a Chinese patent medicine or healthcare food.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: April 14, 2015
    Assignee: Shenzhen Institute For Drug Control
    Inventors: Tiejie Wang, Yi Lu, Lihe Xiao, Xiaoying Guan, Dongqi Han, Guo Yin, Jue Wang, Xueqing Li, Yan Yan
  • Publication number: 20140220698
    Abstract: A method for rapidly measuring melatonin adulteration of Chinese patent medicines and healthcare foods comprises: (1) extracting melatonin added to a Chinese patent medicine or healthcare food by using ethyl acetate; and (2) adding p-dimethylaminocinnamaldehyde to the extracted solution, and observing color. The method is rapid, simple and convenient, has strong specificity, high accuracy, reaction sensitivity, and a wide application range, and is applicable to on-site detection of melatonin adulteration of a Chinese patent medicine or healthcare food.
    Type: Application
    Filed: July 2, 2012
    Publication date: August 7, 2014
    Inventors: Tiejie Wang, Yi Lu, Lihe Xiao, Xiaoying Guan, Dongqi Han, Guo Yin, Jue Wang, Xueqing Li, Yan Yan
  • Publication number: 20120220039
    Abstract: A method and system for detecting residual poison in human body are provided. Using the disclosed HPLC-Chip-mass spectrometry (MS)/MS and/or HPLC-MS/MS method to detect the residual poison, the method of the present invention mainly includes sample preparation, liquid chromatography and mass spectrometry. The method of the present invention has advantages of low sample size, high specificity, low detection limit, high sensitivity, low cost, high accuracy and stability, etc.
    Type: Application
    Filed: November 5, 2010
    Publication date: August 30, 2012
    Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Karl Wah Keung Tsim, Tina Tingxia Dong, Kevin Yue Zhu, Ka Wing Leung, Tiejie Wang