Patents by Inventor Heng Phala

Heng Phala 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 lactide
    Patent number: 4966982
    Abstract: Disclosed is a process for the production of highly pure lactide, especially having a sufficiently high purity to be usable as a raw material for the synthesis of polymers, by heating a 2-halopropionate in a non-aqueous solvent.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: October 30, 1990
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Hiroshi Ono, Heng Phala