Patents by Inventor Zecong Chen

Zecong Chen 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).

  • Method for preparing (S)-nicotine by reduction
    Patent number: 12319947
    Abstract: A method for preparing (S)-nicotine by reduction includes conducting a reduction process on an alkene compound as shown in Formula I and/or an iminium cation compound as shown in Formula II, thereby producing (S)-nicotine. The method is simple, safe, reliable, and yields both high purity and high quantities of (S)-nicotine production.
    Type: Grant
    Filed: November 28, 2023
    Date of Patent: June 3, 2025
    Assignee: PORTON PHARMA SOLUTIONS LTD.
    Inventors: Wenqing Lin, Hongjie Zheng, Xiaobo Liu, Zecong Chen, Lingyu Li, Qingjun Zhou, Songhe Wang, Yongtang Yue, Jicheng Hu, Yue Zhang, Shanshan Miao
  • IMINE REDUCTASE MUTANT, CO-EXPRESSED RECOMBINANT ENZYME OF IMINE REDUCTASE AND GLUCOSE DEHYDROGENASE, AND APPLICATIONS THEREOF
    Publication number: 20240141306
    Abstract: An imine reductase mutant, including a mutation in an amino acid sequence represented by SEQ ID NO: 1. The mutation in the amino acid sequence includes V171, A172, Y230, or a combination thereof. Also provided is a method for preparing (S)-nicotine, including: under suitable conditions, catalytically reducing a substrate I to (S)-nornicotine by the imine reductase mutant, and methylating (S)-nornicotine to yield (S)-nicotine.
    Type: Application
    Filed: December 20, 2023
    Publication date: May 2, 2024
    Inventor: Zecong CHEN
  • METHOD FOR PREPARING (S)-NICOTINE BY REDUCTION
    Publication number: 20240124908
    Abstract: A method for preparing (S)-nicotine by reduction includes conducting a reduction process on an alkene compound as shown in Formula I and/or an iminium cation compound as shown in Formula II, thereby producing (S)-nicotine. The method is simple, safe, reliable, and yields both high purity and high quantities of (S)-nicotine production.
    Type: Application
    Filed: November 28, 2023
    Publication date: April 18, 2024
    Inventors: Wenqing LIN, Hongjie ZHENG, Xiaobo LIU, Zecong CHEN, Lingyu LI, Qingjun ZHOU, Songhe WANG, Yongtang YUE, Jicheng HU, Yue ZHANG, Shanshan MIAO
  • Soft bullet gun
    Patent number: D928246
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: August 17, 2021
    Inventor: Zecong Chen
  • Soft bullet gun
    Patent number: D933139
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: October 12, 2021
    Inventor: Zecong Chen
  • Soft bullet gun
    Patent number: D939639
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: December 28, 2021
    Inventor: Zecong Chen
  • Soft bullet gun
    Patent number: D939640
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: December 28, 2021
    Inventor: Zecong Chen
  • Toy gun
    Patent number: D992655
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: July 18, 2023
    Inventor: Zecong Chen