Patents by Inventor Wenzhan Chen

Wenzhan 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).

  • Biphenyl Acetate, Preparation and Uses Thereof
    Publication number: 20140179949
    Abstract: A biphenyl acetate composition, which is a biphenyl acetic ammonia butantriol salt. The composition is prepared by reacting biphenyl acetic acid and ammonia butantriol in organic solvent, and a ratio of biphenyl acetic acid and ammonia butantriol is 1:1. The salt is capable of providing anti-inflammatory, analgesic, and antipyretic effect. The salt is unique and has stable chemical structure, can be prepared into an injection or a capsule, and has low toxicity and insignificant local and vascular irritating effect, thereby being prepared into a predetermined dosage in a controllable and precise manner.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Inventors: Wei Wang, Wenzhan Chen
  • Biphenyl acetate, preparation and uses thereof
    Patent number: 8653298
    Abstract: The biphenyl acetate is biphenyl acetic ammonia butantriol salt, which is obtained by reacting biphenyl acetic acid with ammonia butantriol in organic solvent. The salt is adapted to be used for producing analgesic, anti-inflammatory and antithermic medicines.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: February 18, 2014
    Assignee: Shijiazhuang Yiling Pharmaceutical Co., Ltd.
    Inventors: Wei Wang, Wenzhan Chen
  • Biphenyl Acetate, Preparation and Uses Thereof
    Publication number: 20130035505
    Abstract: A biphenyl acetate composition, which is a biphenyl acetic ammonia butantriol salt. The composition is prepared by reacting biphenyl acetic acid and ammonia butantriol in organic solvent, and a ratio of biphenyl acetic acid and ammonia butantriol is 1:1. The salt is capable of providing anti-inflammatory, analgesic, and antipyretic effect. The salt is unique and has stable chemical structure, can be prepared into an injection or a capsule, and has low toxicity and insignificant local and vascular irritating effect, thereby being prepared into a predetermined dosage in a controllable and precise manner.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 7, 2013
    Inventors: Wei WANG, Wenzhan CHEN
  • Trans-cinnamic acid derivative, its preparation mathod and the use
    Publication number: 20110028758
    Abstract: A compound of formula (I) or its pharmaceutically acceptable salt is prepared by ring opening of osthol under basic condition. The compound of formula (I) or its pharmaceutically acceptable salt has activity of selectively inhibiting tumor cells and lower toxicity, and can be used for preparing anti-tumor drugs.
    Type: Application
    Filed: June 4, 2008
    Publication date: February 3, 2011
    Inventors: Wei Wang, Jun Ying, Wenzhan Chen, Xuebin Liu, Kui Xu, Qingchun Ni
  • Biphenyl acetate, preparation and uses thereof
    Publication number: 20100016632
    Abstract: The biphenyl acetate is biphenyl acetic ammonia butantriol salt, which is obtained by reacting biphenyl acetic acid with ammonia butantriol in organic solvent. The salt is adapted to be used for producing analgesic, anti-inflammatory and antithermic medicines.
    Type: Application
    Filed: September 27, 2007
    Publication date: January 21, 2010
    Inventors: Wei Wang, Wenzhan Chen