Patents by Inventor HuangHsiung Lin

HuangHsiung Lin 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).

  • Process for the production of a pemetrexed salt
    Patent number: 9051322
    Abstract: A process of making a pemetrexed salt comprising: a) reacting a compound of formula II or an acid salt thereof, wherein each of R1 and R2 is independently a C1-C6 alkyl group, with an aqueous basic solution at a temperature of no more than 10° C. to obtain a first mixture comprising the pemetrexed salt; b) isolating the pemetrexed salt from the first mixture.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: June 9, 2015
    Assignee: SCINOPHARM TAIWAN, LTD.
    Inventors: ShangHong Chen, HuangHsiung Lin
  • Process for the production of a pemetrexed salt
    Publication number: 20120245349
    Abstract: A process of making a pemetrexed salt comprising: a) reacting a compound of formula II or an acid salt thereof, wherein each of R1 and R2 is independently a C1-C6 alkyl group, with an aqueous basic solution at a temperature of no more than 10° C. to obtain a first mixture comprising the pemetrexed salt; b) isolating the pemetrexed salt from the first mixture.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Inventors: ShangHong Chen, HuangHsiung Lin