Patents by Inventor Yanling Cheng

Yanling Cheng 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).

  • Patent number: 11890386
    Abstract: Disinfecting particulate material includes combining the particulate material with a photocatalyst to yield a mixture, irradiating the mixture for a length of time with pulses from a light source having broadband emission spectrum between 190 nm-1100 nm to yield an irradiated mixture, and separating the photocatalyst from the disinfected mixture to yield the disinfected particulate matter. Irradiating the mixture inactivates microorganisms in the mixture to yield a disinfected mixture. A system for disinfecting particulate material includes a pulsed light source having a broadband emission spectrum in a range between about 190 nm and about 1100 nm, a chamber defining a cavity optically coupled to the pulsed light source, a humidifier, a fan, and one or more sensors. The chamber includes a conveyor configured to accept the particulate material and arranged such that the pulses emitted by the pulsed light source irradiate the particulate material on the conveyor.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: February 6, 2024
    Assignee: Regents of the University of Minnesota
    Inventors: Rongsheng Ruan, Yanling Cheng, Nan Zhou, Dongjie Chen, Peng Peng, Yunpu Wang, Renchuan Zhang, Charles Schiappacasse, Ling Chen
  • Patent number: 11376274
    Abstract: A joint cavity injection preparation is provided. The active ingredient of the joint cavity injection preparation is deacetylated xanthan gum (XG). The deacetylated XG has a molecular weight of 500,000 to 20,000,000. The joint cavity injection preparation is prepared from deacetylated xanthan gum (XG), which has higher biocompatibility and safe wide-dosage range than existing joint cavity injection preparations prepared from XG.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: July 5, 2022
    Assignees: SHANDONG ACADEMY OF PHARMACEUTICAL SCIENCES, SHANDONG FREDA PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Peixue Ling, Fei Liu, Huarong Shao, Lei Chen, Zhiyun Zhang, Xiaoyuan Zhang, Qixin Chen, Guanying Han, Yanling Cheng, Jianqiang Zhang, Daizhou Zhang
  • Publication number: 20210353662
    Abstract: A joint cavity injection preparation is provided. The active ingredient of the joint cavity injection preparation is deacetylated xanthan gum (XG). The deacetylated XG has a molecular weight of 500,000 to 20,000,000. The joint cavity injection preparation is prepared from deacetylated xanthan gum (XG), which has higher biocompatibility and safe wide-dosage range than existing joint cavity injection preparations prepared from XG.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 18, 2021
    Applicants: SHANDONG ACADEMY OF PHARMACEUTICAL SCIENCES, SHANDONG FREDA PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Peixue LING, Fei LIU, Huarong SHAO, Lei CHEN, Zhiyun ZHANG, Xiaoyuan ZHANG, Qixin CHEN, Guanying HAN, Yanling CHENG, Jianqiang ZHANG, Daizhou ZHANG
  • Publication number: 20200289681
    Abstract: Disinfecting particulate material includes combining the particulate material with a photocatalyst to yield a mixture, irradiating the mixture for a length of time with pulses from a light source having broadband emission spectrum between 190 nm-1100 nm to yield an irradiated mixture, and separating the photocatalyst from the disinfected mixture to yield the disinfected particulate matter. Irradiating the mixture inactivates microorganisms in the mixture to yield a disinfected mixture. A system for disinfecting particulate material includes a pulsed light source having a broadband emission spectrum in a range between about 190 nm and about 1100 nm, a chamber defining a cavity optically coupled to the pulsed light source, a humidifier, a fan, and one or more sensors. The chamber includes a conveyor configured to accept the particulate material and arranged such that the pulses emitted by the pulsed light source irradiate the particulate material on the conveyor.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 17, 2020
    Inventors: Rongsheng Ruan, Yanling Cheng, Nan Zhou, Dongjie Chen, Peng Peng, Yunpu Wang, Renchuan Zhang, Charles Schiappacasse, Ling Chen
  • Publication number: 20140105807
    Abstract: The disclosure herein describes a method for producing ammonia by introducing N2, CO and water into a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the disassociation of N2, CO and water to form reactants that in turn react to produce NH3 and CH4. This disclosure also describes producing a reactive hydrogen ion or free radical by the method comprising passing water through a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the dissociation of water.
    Type: Application
    Filed: December 26, 2013
    Publication date: April 17, 2014
    Inventors: Rongsheng Ruan, Shaobo Deng, Zhiping Le, Yanling Cheng, Xiangyang Lin, Ling Chen
  • Patent number: 8641872
    Abstract: The disclosure herein describes a method for producing ammonia by introducing N2, CO and water into a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the disassociation of N2, CO and water to form reactants that in turn react to produce NH3 and CH4. This disclosure also describes producing a reactive hydrogen ion or free radical by the method comprising passing water through a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the dissociation of water.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: February 4, 2014
    Assignee: Regents of the University of Minnesota
    Inventors: Rongsheng Ruan, Shaobo Deng, Zhiping Le, Yanling Cheng, Xiangyang Lin, Ling Chen
  • Publication number: 20110233047
    Abstract: The disclosure herein describes a method for producing ammonia by introducing N2, CO and water into a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the disassociation of N2, CO and water to form reactants that in turn react to produce NH3 and CH4. This disclosure also describes producing a reactive hydrogen ion or free radical by the method comprising passing water through a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the dissociation of water.
    Type: Application
    Filed: September 16, 2009
    Publication date: September 29, 2011
    Inventors: Rongsheng Ruan, Shaoboo Deng, Le Zhiping, Yanling Cheng, Xiangyang Lin, Ling Chen