Patents by Inventor Yonghui Yuan

Yonghui Yuan 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: 20240025950
    Abstract: The invention relates to a purification method of a recombinantly-produced RSV F protein in trimeric form. According to the invention, the method sequentially comprises an anion exchange chromatography step, a cHA chromatography step and a HIC step. The invention is also directed to a pharmaceutical product including an RSV F protein purified by such a method.
    Type: Application
    Filed: July 22, 2021
    Publication date: January 25, 2024
    Inventors: Ping Cai, Eun Hee Koh, Eugene Joseph Vidunas, Michele L. Weaver, Xinhao Ye, Yonghui Yuan, Jay Zhixing Zhao
  • Publication number: 20230383324
    Abstract: The present invention relates to methods for purifying bacterial polysaccharides, in particular for removing impurities from cellular lysates of bacteria producing polysaccharides.
    Type: Application
    Filed: October 19, 2021
    Publication date: November 30, 2023
    Inventors: Elizabeth BARANYI, Wei CHEN, Zecheng CHEN, Justin Keith MORAN, Yonghui YUAN
  • Patent number: 9675681
    Abstract: A shortened process for producing a solution containing substantially purified capsular polysaccharides from a cellular Streptococcus pneumoniae lysate broth is described. Ultrafiltering and diafiltering a clarified S. pneumoniae lysate followed by pH adjustment to less than 4.5, preferably about 3.5, precipitated at least 98% of the protein in the solution without seriously affecting polysaccharide yield. Furthermore, following ultrafiltration and diafiltration and acidification to a pH of less than 4.5, filtration using activated carbon precipitated at least 90% of remaining protein without seriously affecting polysaccharide yield. Exemplary, non-limiting S. pneumoniae serotypes that can be purified using the shortened process of the invention are 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: June 13, 2017
    Assignee: Wyeth LLC
    Inventors: Yonghui Yuan, Mark Ruppen, Wei-Qiang Sun, Ling Chu, John Simpson, James Patch, Justin Keith Moran, Pamela S. Fink
  • Publication number: 20150165017
    Abstract: A shortened process for producing a solution containing substantially purified capsular polysaccharides from a cellular Streptococcus pneumoniae lysate broth is described. Ultrafiltering and diafiltering a clarified S. pneumoniae lysate followed by pH adjustment to less than 4.5, preferably about 3.5, precipitated at least 98% of the protein in the solution without seriously affecting polysaccharide yield. Furthermore, following ultrafiltration and diafiltration and acidification to a pH of less than 4.5, filtration using activated carbon precipitated at least 90% of remaining protein without seriously affecting polysaccharide yield. Exemplary, non-limiting S. pneumoniae serotypes that can be purified using the shortened process of the invention are 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Inventors: Yonghui Yuan, Mark Ruppen, Wei-Qiang Sun, Ling Chu, John Simpson, James Patch, Justin Keith Moran, Pamela Fink Charbonneau
  • Patent number: 8999697
    Abstract: A shortened process for producing a solution containing substantially purified capsular polysaccharides from a cellular Streptococcus pneumoniae lysate broth is described. Ultrafiltering and diafiltering a clarified S. pneumoniae lysate followed by pH adjustment to less than 4.5, preferably about 3.5, precipitated at least 98% of the protein in the solution without seriously affecting polysaccharide yield. Furthermore, following ultrafiltration and diafiltration and acidification to a pH of less than 4.5, filtration using activated carbon precipitated at least 90% of remaining protein without seriously affecting polysaccharide yield. Exemplary, non-limiting S. pneumoniae serotypes that can be purified using the shortened process of the invention are 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: April 7, 2015
    Assignee: Wyeth LLC
    Inventors: Yonghui Yuan, Mark Ruppen, Wei-Qiang Sun, Ling Chu, John Simpson, James Patch, Justin Keith Moran, Pamela Fink Charbonneau
  • Publication number: 20140363463
    Abstract: A shortened process for producing a solution containing substantially purified capsular polysaccharides from a cellular Streptococcus pneumoniae lysate broth is described. Ultrafiltering and diafiltering a clarified S. pneumoniae lysate followed by pH adjustment to less than 4.5, preferably about 3.5, precipitated at least 98% of the protein in the solution without seriously affecting polysaccharide yield. Furthermore, following ultrafiltration and diafiltration and acidification to a pH of less than 4.5, filtration using activated carbon precipitated at least 90% of remaining protein without seriously affecting polysaccharide yield. Exemplary, non-limiting S. pneumoniae serotypes that can be purified using the shortened process of the invention are 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 11, 2014
    Applicant: Wyeth LLC
    Inventors: Yonghui YUAN, Mark RUPPEN, Wei-Qiang SUN, Ling CHU, John SIMPSON, James PATCH, Justin Keith MORAN, Pamela FINK CHARBONNEAU
  • Patent number: 8652480
    Abstract: A shortened process for producing a solution containing substantially purified capsular polysaccharides from a cellular Streptococcus pneumoniae lysate broth is described. Ultrafiltering and diafiltering a clarified S. pneumoniae lysate followed by pH adjustment to less than 4.5, preferably about 3.5, precipitated at least 98% of the protein in the solution without seriously affecting polysaccharide yield. Furthermore, following ultrafiltration and diafiltration and acidification to a pH of less than 4.5, filtration using activated carbon precipitated at least 90% of remaining protein without seriously affecting polysaccharide yield. Exemplary, non-limiting S. pneumoniae serotypes that can be purified using the shortened process of the invention are 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: February 18, 2014
    Assignee: Wyeth LLC
    Inventors: Yonghui Yuan, Mark Ruppen, Wei-Qiang Sun, Ling Chu, John Simpson, James Patch, Justin Keith Moran, Pamela Fink
  • Publication number: 20080286838
    Abstract: A shortened process for producing a solution containing substantially purified capsular polysaccharides from a cellular Streptococcus pneumoniae lysate broth is described. Ultrafiltering and diafiltering a clarified S. pneumoniae lysate followed by pH adjustment to less than 4.5, preferably about 3.5, precipitated at least 98% of the protein in the solution without seriously affecting polysaccharide yield. Furthermore, following ultrafiltration and diafiltration and acidification to a pH of less than 4.5, filtration using activated carbon precipitated at least 90% of remaining protein without seriously affecting polysaccharide yield. Exemplary, non-limiting S. pneumoniae serotypes that can be purified using the shortened process of the invention are 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F.
    Type: Application
    Filed: March 20, 2008
    Publication date: November 20, 2008
    Applicant: Wyeth
    Inventors: Yonghui Yuan, Mark Ruppen, Wei-Qiang Sun, Ling Chu, John Simpson, James Patch, Justin Keith Moran, Pamela Fink
  • Publication number: 20050042187
    Abstract: A high skin friction cosmetic composition that can provide the consumer-desired sensory properties of traditional vanishing creams, containing solid asymmetric particles and ZnO incorporated by an inventive process. According to the inventive process the temperature during the mixing of ZnO and asymmetric particles is controlled at less than 80° C. and the time of mixing is limited to about 10 minutes. After about 10 minutes, the reaction is quenched by cooling to about 50° C.
    Type: Application
    Filed: August 21, 2003
    Publication date: February 24, 2005
    Inventors: Ritu Verma, Yonghui Yuan
  • Patent number: D982064
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: March 28, 2023
    Assignee: Shenzhen Dongzheng Optical Technology Co., Ltd.
    Inventors: Yi Xu, Zhiquan Yang, Yonghui Yuan, Jieming Li, Sufan Peng
  • Patent number: D985658
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: May 9, 2023
    Inventors: Yonghui Yuan, Qi Hong, Songjian Yao, Bin Zhang
  • Patent number: D995611
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: August 15, 2023
    Inventors: Yonghui Yuan, Qi Hong, Songjian Yao
  • Patent number: D1002703
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: October 24, 2023
    Assignee: Chouch Optical Technology Co., Ltd.
    Inventors: Yi Xu, Zhiquan Yang, Yonghui Yuan, Jieming Li, Sufan Peng
  • Patent number: D1013759
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 6, 2024
    Assignee: Shenzhen Dongzheng Optical Technology Co., Ltd
    Inventors: Yi Xu, Zhiquan Yang, Yonghui Yuan, Jieming Li, Sufan Peng