Patents by Inventor Pu-Sheng WEI

Pu-Sheng WEI 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).

  • POLYLACTIC ACID MICROSPHERE, POLYLACTIC-CO-GLYCOLIC ACID MICROSPHERE AND METHOD OF PREPARING THE SAME
    Publication number: 20240122856
    Abstract: A method of preparing polylactic acid (PLA) microsphere and polylactic-co-glycolic acid (PLGA) microsphere is provided, including the following steps. A first solution is provided, including polylactic acid or polylactic-co-glycolic acid and an organic solvent. A second solution is provided, including polyvinyl alcohol, sodium carboxymethyl cellulose and an aqueous solution. The first solution is added to the second solution and, at the same time, the second solution is agitated until polylactic acid is solidified to form a plurality of polylactic acid microspheres, or until polylactic-co-glycolic acid is solidified to form a plurality of polylactic-co-glycolic acid microspheres. The polylactic acid microspheres or polylactic-co-glycolic acid microspheres are collected.
    Type: Application
    Filed: December 27, 2023
    Publication date: April 18, 2024
    Inventors: Ming-Thau SHEU, Yu-Ying HSU, Yu-De SU, Yu-Hsuan LIU, Pu-Sheng WEI
  • Polylactic acid microsphere, polylactic-co-glycolic acid microsphere and method of preparing the same
    Patent number: 11883536
    Abstract: A method of preparing polylactic acid (PLA) microsphere and polylactic-co-glycolic acid (PLGA) microsphere is provided, including the following steps. A first solution is provided, including polylactic acid or polylactic-co-glycolic acid and an organic solvent. A second solution is provided, including polyvinyl alcohol, sodium carboxymethyl cellulose and an aqueous solution. The first solution is added to the second solution and, at the same time, the second solution is agitated until polylactic acid is solidified to form a plurality of polylactic acid microspheres, or until polylactic-co-glycolic acid is solidified to form a plurality of polylactic-co-glycolic acid microspheres. The polylactic acid microspheres or polylactic-co-glycolic acid microspheres are collected.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: January 30, 2024
    Assignees: TAIPEI MEDICAL UNIVERSITY, PANION & BF BIOTECH INC.
    Inventors: Ming-Thau Sheu, Yu-Ying Hsu, Yu-De Su, Yu-Hsuan Liu, Pu-Sheng Wei
  • Hydrogel composition for drug delivery and uses thereof
    Patent number: 11680107
    Abstract: The present disclosure relates to a biodegradable and thermosensitive hydrogel composition comprising a diblock PLGA-PEG copolymer and a triblock PLGA-PEG-PLGA copolymer. A method for treating or alleviating one or more symptoms of a disease and a method for delivering an active agent are also provided.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: June 20, 2023
    Assignee: Taipei Medical University
    Inventors: Shyr-Yi Lin, Ming-Thau Sheu, Kuo-Hsiang Chuang, Yi-Jou Chen, Pu-Sheng Wei
  • POLYLACTIC ACID MICROSPHERE, POLYLACTIC-CO-GLYCOLIC ACID MICROSPHERE AND METHOD OF PREPARING THE SAME
    Publication number: 20220313612
    Abstract: A method of preparing polylactic acid (PLA) microsphere and polylactic-co-glycolic acid (PLGA) microsphere is provided, including the following steps. A first solution is provided, including polylactic acid or polylactic-co-glycolic acid and an organic solvent. A second solution is provided, including polyvinyl alcohol, sodium carboxymethyl cellulose and an aqueous solution. The first solution is added to the second solution and, at the same time, the second solution is agitated until polylactic acid is solidified to form a plurality of polylactic acid microspheres, or until polylactic-co-glycolic acid is solidified to form a plurality of polylactic-co-glycolic acid microspheres. The polylactic acid microspheres or polylactic-co-glycolic acid microspheres are collected.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Ming-Thau SHEU, Yu-Ying HSU, Yu-De SU, Yu-Hsuan LIU, Pu-Sheng WEI
  • HYDROGEL COMPOSITION FOR DRUG DELIVERY AND USES THEREOF
    Publication number: 20200299405
    Abstract: The present disclosure relates to a biodegradable and thermosensitive hydrogel composition comprising a diblock PLGA-PEG copolymer and a triblock PLGA-PEG-PLGA copolymer. A method for treating or alleviating one or more symptoms of a disease and a method for delivering an active agent are also provided.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 24, 2020
    Inventors: Shyr-Yi LIN, Ming-Thau SHEU, Kuo-Hsiang CHUANG, Yi-Jou CHEN, Pu-Sheng WEI