Patents by Inventor Jinlan XU

Jinlan XU 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: 11384384
    Abstract: Disclosed herein are methods, reagent kits, and compositions for performing a bisulfite conversion of DNA directly from a biological sample including a patient's urine sample or a slide-mounted FFPE tissue sample. For example, a method of performing a bisulfite conversion of DNA can comprise certain preliminary steps for processing the biological sample and transferring a portion of the processed sample into a reaction vessel containing a bisulfite mixture. The method can further comprise heating the reaction vessel containing the biological sample and the bisulfite mixture at several heating temperatures and subsequently holding the reaction vessel at a holding temperature for a holding period. The method can also comprise certain bisulfite removal steps, desulfonation steps, and removal of the desulfonation solution. A final elution step can yield the converted DNA for further downstream sequencing and analysis.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: July 12, 2022
    Inventors: Tom Cheng Xu, Kuikui Shen, Sally Li Shen, Jinlan Xu, Shilei Tang, Jusong Liang
  • Patent number: 11332777
    Abstract: Disclosed herein are methods, reagent kits, and compositions for performing a bisulfite conversion of DNA directly from a biological sample including a patient's urine sample or a slide-mounted FFPE tissue sample. For example, a method of performing a bisulfite conversion of DNA can comprise certain preliminary steps for processing the biological sample and transferring a portion of the processed sample into a reaction vessel containing a bisulfite mixture. The method can further comprise heating the reaction vessel containing the biological sample and the bisulfite mixture at several heating temperatures and subsequently holding the reaction vessel at a holding temperature for a holding period. The method can also comprise certain bisulfite removal steps, desulfonation steps, and removal of the desulfonation solution. A final elution step can yield the converted DNA for further downstream sequencing and analysis.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: May 17, 2022
    Assignee: URIT Medical Electronic Co., Ltd.
    Inventors: Tom Cheng Xu, Kuikui Shen, Sally Li Shen, Jinlan Xu, Shilei Tang, Jusong Liang
  • Publication number: 20210198807
    Abstract: Disclosed are methods for preparing a DNA library directly from a stool sample. The method comprises applying the stool sample directly to a buffer, heating and cooling the buffer, separating a supernatant within the buffer from a precipitate using centrifugation, and transferring the supernatant into a first reaction vessel containing a first reagent mixture to yield a first reaction mixture. The method also comprises subjecting the first reaction mixture to a first PCR protocol, purifying amplicons within the first reaction vessel through a first purification procedure to yield a purified target amplicon solution, transferring the purified target amplicon solution to a second reaction vessel comprising a second reagent mixture to yield a second reaction mixture, and subjecting the second reaction mixture to a second PCR protocol. The method further comprises purifying index-tagged amplicons within the second reaction vessel through a second purification procedure to yield the DNA library.
    Type: Application
    Filed: March 17, 2020
    Publication date: July 1, 2021
    Applicant: URIT Medical Electronic Co., Ltd.
    Inventors: Tom Cheng XU, Chengfeng JIANG, Jinlan XU, Chunyan LIAO
  • Patent number: 9909184
    Abstract: Disclosed are methods, compositions, and diagnostic kits for the rapid detection of certain types of ?-thalassemia and ?-thalassemia. In some embodiments, a diagnostic kit, reagents, and methods are disclosed for the rapid detection of various ?-thalassemia and ?-thalassemia genotypes in multiple patient samples using real-time PCR. More specifically, in certain embodiments, diagnostic kits, reagents, and methods are disclosed for the rapid detection of up to seven different ?-thalassemia genotypes and twenty different ?-thalassemia genotypes in one single multiplex real-time PCR reaction.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: March 6, 2018
    Assignee: URIT Medical Electronic Co., Ltd.
    Inventors: Tom Cheng Xu, Jun Liu, Chengfeng Jiang, Jinlan Xu, Lili Sun
  • Publication number: 20180057880
    Abstract: Disclosed are methods, compositions, and diagnostic kits for the rapid detection of certain types of ?-thalassemia and ?-thalassemia. In some embodiments, a diagnostic kit, reagents, and methods are disclosed for the rapid detection of various ?-thalassemia and ?-thalassemia genotypes in multiple patient samples using real-time PCR. More specifically, in certain embodiments, diagnostic kits, reagents, and methods are disclosed for the rapid detection of up to seven different ?-thalassemia genotypes and twenty different ?-thalassemia genotypes in one single multiplex real-time PCR reaction.
    Type: Application
    Filed: August 23, 2017
    Publication date: March 1, 2018
    Applicant: URIT Medical Electronic Co., Ltd.
    Inventors: Tom Cheng XU, Jun LIU, Chengfeng JIANG, Jinlan XU, Lili SUN