Patents by Inventor Hei Jen Sun

Hei Jen Sun 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).

  • Publication number: 20110144181
    Abstract: Solid pharmaceutical compositions containing atorvastatin are disclosed. The compositions include a solid dispersion of amorphous atorvastatin and one or more optional pharmaceutically acceptable excipients. The solid dispersion is prepared by mixing crystalline atorvastatin with a melt-processible polymer and an optional stabilizer and an optional plasticizer at a temperature sufficiently high to soften or melt the polymer and to melt or dissolve the crystalline atorvastatin in the polymer, thereby forming a dispersion of amorphous atorvastatin.
    Type: Application
    Filed: February 24, 2011
    Publication date: June 16, 2011
    Inventors: Stephen Craig Dyar, Mayur P. Lodaya, Matthew J. Mollan, JR., Umang Shah, Hei Jen Sun, Zeri Teweldemedhin
  • Publication number: 20090088465
    Abstract: Solid pharmaceutical compositions containing atorvastatin are disclosed. The compositions include a solid dispersion of amorphous atorvastatin and one or more optional pharmaceutically acceptable excipients. The solid dispersion is prepared by mixing crystalline atorvastatin with a melt-processable polymer and an optional stabilizer at a temperature sufficiently high to soften or melt the polymer and to melt or dissolve the crystalline atorvastatin in the polymer, thereby forming a dispersion of amorphous atorvastatin.
    Type: Application
    Filed: November 23, 2005
    Publication date: April 2, 2009
    Inventors: Stephen Craig Dyar, Mayur P. Lodaya, Matthew J. Mollan, JR., Umang Shah, Hei Jen Sun, Zeri Teweldemedhin