Patents by Inventor Yiqing Zhang

Yiqing Zhang 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: 20250131456
    Abstract: An implementation method for a paper-based visually identifiable anti-counterfeiting electronic seal is achieved through functional software that is configured with an authentication communication interface. An electronic seal pattern includes a fixed information part and a dynamic information part, and the later includes an associated code of stamped sample and an associated code of authorized counterpart. An operator needs to provide a communication tool number of an authorized counterpart, serving as an associated code to be embedded into the seal pattern for intuitive display. The software binds the code to stamped samples, permitting the authorized counterpart to authenticate, extract, or consult the samples through a communication tool. Using the authentication communication interface, the authorized counterpart can perform anti-counterfeiting verification on the stamped samples.
    Type: Application
    Filed: December 24, 2024
    Publication date: April 24, 2025
    Inventor: YIQING ZHANG
  • Patent number: 12247089
    Abstract: This invention provides a preparation, composition, product, and application of a photo-coupled synergistically crosslinked hydrogel material. The preparation includes dissolving Component A including a photosensitive polymer derivative having o-nitrobenzyl phototriggers and Component B including a polymer derivative having amine or alkene (double group) or sulfhydryl group in a biocompatible medium to obtain solution A and solution B, respectively; mixing the solution A and solution B homogeneously to obtain a hydrogel precursor solution; initiating photo-coupled synergistic crosslinking under an irradiation of a UV light to form the hydrogel. The irradiation causes the o-nitrobenzyl phototriggers to generate an aldehyde group/keto group or a nitroso group to initiate photo-coupled synergetic crosslinking. The photo-coupled synergistically crosslinked hydrogel has applications in tissue engineering, regenerative medicine, 3D printing and as a carrier of cell, protein or drug.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: March 11, 2025
    Assignee: ZHONGSHAN GUANGHE MEDICAL TECHNOLOGY CO., LTD.
    Inventors: Linyong Zhu, Yujie Hua, Qiuning Lin, Yiqing Zhang, Chunyan Bao, Xuepeng Zhong
  • Publication number: 20230372582
    Abstract: This invention provides the preparation and applications of a degradable dual-component hydrogel. The hydrogel is prepared by mixing component A, component B and solvent; Component A is an o-phthalaldehyde modified degradable polymer; Component B is a water-soluble molecule, a water-soluble synthetic polymer, or a polysaccharide that contains one or more types of the groups selected from primary amine, hydrazine, hydrazide, hydroxylamine and sulfhydryl, with the number of groups not less than 2. This invention achieves the regulation for hydrogel degradability by introducing degradable structures into the polymer skeleton of component A, and obtains hydrogels with rapid degradation. This invention thus solve the dilemma of materials—confronting either the problems of undegradable poly (ethylene glycol) skeleton or the potential risks of the degradable bioproducts introduced—used for preparing the dual-component hydrogel.
    Type: Application
    Filed: August 2, 2023
    Publication date: November 23, 2023
    Applicant: SHANGHAI LINGEL MEDICAL TECHNOLOGY CO., LTD.
    Inventors: Yiqing ZHANG, Yu SUN
  • Patent number: 11332929
    Abstract: A large-angle sloping roof steel structure connected to a main body structure, including: an intermediate platform, inclined main supporting steel columns circumferentially connected at four corners of the intermediate platform, constructing steel columns and wind-proof surrounding beam connected between top ends of the inclined main supporting steel columns, where roof purlin are connected between the adjacent inclined main supporting steel columns at intervals. The invention provides a top-down inverted construction method for a large-angle sloping roof with a steel structure as the main structural form. By using the method, the operation safety of an inclined main stressed vertical member during the installation process can be ensured, and the investment of supporting measures is reduced by preferentially installing the intermediate platform, thus effectively ensuring the installation progress, quality and safety of the sloping roof steel structure.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: May 17, 2022
    Inventors: Yuqi Zhou, Gang Xue, Honghai Li, Ganglin Liao, Qiang Liu, Zuojiang Lin, Yiqing Zhang, Yu Song, Hongyuan Wang, Le Zhou
  • Patent number: 11117879
    Abstract: This invention provides preparations, compositions, products, and applications of photo-crosslinked hydrogels. Component A—a photosensitive polymer derivative, component B—the photoinitiator, and auxiliary component C—other biocompatible polymer derivative each are respectively dissolved in a biocompatible medium to obtain solution A, solution B, and solution C. The solution A, the solution B, and the optional solution C are mixed homogenously to obtain a hydrogel precursor solution. The hydrogel precursor solution is subject to irradiation of the UV light for photocoupled crosslinking to form a photo-crosslinked hydrogel. The photo-crosslinked hydrogel exhibit rapid speed of photo-curing, strong tissue adhesion, excellent mechanical properties, good biocompatibility, and excellent clinical operability.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: September 14, 2021
    Assignee: Zhongshan Guanghe Medical Technology Co., Ltd.
    Inventors: Linyong Zhu, Yujie Hua, Qiuning Lin, Yiqing Zhang, Chunyan Bao, Xuepeng Zhong
  • Publication number: 20210214939
    Abstract: A large-angle sloping roof steel structure connected to a main body structure, including: an intermediate platform, inclined main supporting steel columns circumferentially connected at four corners of the intermediate platform, constructing steel columns and wind-proof surrounding beam connected between top ends of the inclined main supporting steel columns, where roof purlin are connected between the adjacent inclined main supporting steel columns at intervals. The invention provides a top-down inverted construction method for a large-angle sloping roof with a steel structure as the main structural form. By using the method, the operation safety of an inclined main stressed vertical member during the installation process can be ensured, and the investment of supporting measures is reduced by preferentially installing the intermediate platform, thus effectively ensuring the installation progress, quality and safety of the sloping roof steel structure.
    Type: Application
    Filed: April 16, 2019
    Publication date: July 15, 2021
    Inventors: YUQI ZHOU, GANG XUE, HONGHAI LI, GANGLIN LIAO, QIANG LIU, ZUOJIANG LIN, YIQING ZHANG, YU SONG, HONGYUAN WANG, LE ZHOU
  • Publication number: 20200262939
    Abstract: This invention provides a preparation, composition, product, and application of a photo-coupled synergistically crosslinked hydrogel material. The preparation includes dissolving Component A including a photosensitive polymer derivative having o-nitrobenzyl phototriggers and Component B including a polymer derivative having amine or alkene (double group) or sulfhydryl group in a biocompatible medium to obtain solution A and solution B, respectively; mixing the solution A and solution B homogeneously to obtain a hydrogel precursor solution; initiating photo-coupled synergistic crosslinking under an irradiation of a UV light to form the hydrogel. The irradiation causes the o-nitrobenzyl phototriggers to generate an aldehyde group/keto group or a nitroso group to initiate photo-coupled synergetic crosslinking. The photo-coupled synergistically crosslinked hydrogel has applications in tissue engineering, regenerative medicine, 3D printing and as a carrier of cell, protein or drug.
    Type: Application
    Filed: April 14, 2020
    Publication date: August 20, 2020
    Inventors: Linyong Zhu, Yujie Hua, Qiuning Lin, Yiqing Zhang, Chunyan BAO, Xuepeng Zhong
  • Publication number: 20200262802
    Abstract: This invention provides preparations, compositions, products, and applications of photo-crosslinked hydrogels. Component A—a photosensitive polymer derivative, component B—the photoinitiator, and auxiliary component C—other biocompatible polymer derivative each are respectively dissolved in a biocompatible medium to obtain solution A, solution B, and solution C. The solution A, the solution B, and the optional solution C are mixed homogenously to obtain a hydrogel precursor solution. The hydrogel precursor solution is subject to irradiation of the UV light for photocoupled crosslinking to form a photo-crosslinked hydrogel. The photo-crosslinked hydrogel exhibit rapid speed of photo-curing, strong tissue adhesion, excellent mechanical properties, good biocompatibility, and excellent clinical operability.
    Type: Application
    Filed: April 14, 2020
    Publication date: August 20, 2020
    Inventors: Linyong Zhu, Yujie Hua, Qiuning Lin, Yiqing Zhang, Chunyan BAO, Xuepeng Zhong