Patents by Inventor Zengping LIU

Zengping LIU 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).

  • AN ANTI-ANGIOGENIC AGENT AND RELATED METHODS
    Publication number: 20240374518
    Abstract: There is provided an anti-angiogenic agent comprising: a multi-block copolymer in the form of one or more micelles, wherein the copolymer comprises a first poly (alkylene glycol) block, a second poly (alkylene glycol) block and a polyester block. There is also provided a method of preparing said anti-angiogenic agent and medical uses of said anti-angiogenic agent.
    Type: Application
    Filed: July 7, 2022
    Publication date: November 14, 2024
    Inventors: Xinyi Su, Xinxin Zhao, Queenie Shu Woon Tan, Walter Hunziker, Zengping Liu, Xian Jun Loh, Kun Xue, Veluchamy Amutha Barathi
  • Material suitable for use as a vitreous substitute and related methods
    Patent number: 11583612
    Abstract: There is provided a material comprising a multi-block thermogelling polymer, said multi-block thermogelling polymer comprising a hydrophilic polymer block; a thermosensitive polymer block; and a hydrophobic polymer block, wherein the hydrophilic polymer block, the thermosensitive polymer block and the hydrophobic polymer block are chemically coupled together by at least one of urethane/carbamate, carbonate, ester linkages or combinations thereof, and wherein the material is suitable for use as a vitreous substitute. Also provided are a method of preparing said material and a synthetic vitreous humour or part thereof comprising said material.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: February 21, 2023
    Assignees: Agency for Science, Technology and Research, National University Hospital (Singapore) Pte Ltd, National University of Singapore, Singapore Health Services Pte Ltd
    Inventors: Xian Jun Loh, Xinyi Su, Zengping Liu, Gopal Lingam, Veluchamy Amutha Barathi, Walter Hunziker
  • MATERIAL SUITABLE FOR USE AS A VITREOUS SUBSTITUTE AND RELATED METHODS
    Publication number: 20200276357
    Abstract: There is provided a material comprising a multi-block thermogelling polymer, said multi-block thermogelling polymer comprising a hydrophilic polymer block; a thermosensitive polymer block; and a hydrophobic polymer block, wherein the hydrophilic polymer block, the thermosensitive polymer block and the hydrophobic polymer block are chemically coupled together by at least one of urethane/carbamate, carbonate, ester linkages or combinations thereof, and wherein the material is suitable for use as a vitreous substitute. Also provided are a method of preparing said material and a synthetic vitreous humour or part thereof comprising said material.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 3, 2020
    Inventors: Xian Jun LOH, Xinyi SU, Zengping LIU, Gopal LINGAM, Amutha Veluchamy BARATHI, Walter HUNZIKER