Patents by Inventor Chih-Chen Yeh

Chih-Chen Yeh 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).

  • Platelet filtration membrane and its applications thereof
    Patent number: 12274987
    Abstract: A platelet filtration membrane and its application for preparing platelets rich plasma and separating platelets from blood samples are disclosed. The platelet filtration membrane comprises a coating layer and a porous substrate. The coating layer composition comprises a first copolymer having a plurality of amide groups and a second copolymer having a plurality of carboxylic acid groups, and the porous substrate comprises PE, PP, PS, PET, PTFE, PVDF, ceramic or rayon. The coating layer is on surfaces of the porous substrate to form the platelet filtration membrane.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: April 15, 2025
    Assignee: CHUNG YUAN CHRISTIAN UNIVERSITY
    Inventors: Yung Chang, Chih Chen Yeh
  • Polymer and device for capturing or separating leucocytes, manufacturing method and use thereof
    Patent number: 11833289
    Abstract: Disclosed is a polymer for capturing or separating leukocytes. The polymer is prepared by a polymerization reaction of monomers containing an amino and a hydroxyl. The monomer containing an amino and a hydroxyl has the structure of formula (1): In formula (1), R1 is independently selected from the group consisting of a hydrogen, a methyl, an ethyl, a hydroxyl, any one of C1 to C12 long carbon chains, and a benzene ring, R2 is independently selected from the group consisting of a hydrogen, a methyl, an ethyl, any one of from C1 to C6 long carbon chains, an amino and a benzene ring, and n is an integer of 1 to 5.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: December 5, 2023
    Assignee: PURIBLOOD MEDICAL CO., LTD.
    Inventors: Yung Chang, Chih-Chen Yeh, Cheng-Chen Yang, Jheng-Fong Jhong
  • Platelet filtration membrane and its applications thereof
    Publication number: 20230148415
    Abstract: A platelet filtration membrane and its application for preparing platelets rich plasma and separating platelets from blood samples are disclosed. The platelet filtration membrane comprises a coating layer and a porous substrate. The coating layer composition comprises a first copolymer having a plurality of amide groups and a second copolymer having a plurality of carboxylic acid groups, and the porous substrate comprises PE, PP, PS, PET, PTFE, PVDF, ceramic or rayon. The coating layer is on surfaces of the porous substrate to form the platelet filtration membrane.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 11, 2023
    Inventors: Yung Chang, Chih Chen Yeh
  • POLYMER AND DEVICE FOR CAPTURING OR SEPARATING LEUCOCYTES, MANUFACTURING METHOD AND USE THEREOF
    Publication number: 20190359752
    Abstract: Disclosed is a polymer for capturing or separating leukocytes. The polymer is prepared by a polymerization reaction of monomers containing an amino and a hydroxyl. The monomer containing an amino and a hydroxyl has the structure of formula (1): In formula (1), R1 is independently selected from the group consisting of a hydrogen, a methyl, an ethyl, a hydroxyl, any one of C1 to C12 long carbon chains, and a benzene ring, R2 is independently selected from the group consisting of a hydrogen, a methyl, an ethyl, any one of from C1 to C6 long carbon chains, an amino and a benzene ring, and n is an integer of 1 to 5.
    Type: Application
    Filed: November 9, 2017
    Publication date: November 28, 2019
    Inventors: Yung Chang, Chih-Chen Yeh, Cheng-Chen Yang, Jheng-Fong Jhong