Patents by Inventor Ed Sung

Ed Sung 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).

  • Polymeric dispersants based on addition of amines to dialkylsuccinyl succinate or its derivatives
    Patent number: 7407544
    Abstract: Dispersants for pigments as well as dispersions of pigments containing them, and compositions such as inks and coatings containing them are described. The dispersants are the reaction product of a dialkylsuccinyl succinate and an amine.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: August 5, 2008
    Assignee: Sun Chemical Corporation
    Inventors: Tatiana N. Romanova, Ed Sung, Russell J. Schwartz
  • Pigment dispersants
    Publication number: 20080087193
    Abstract: Dispersants for pigments as well as dispersions of pigments containing them, and compositions such as inks and coatings containing them are described. The dispersants are the reaction product of a dialkylsuccinyl succinate and an amine.
    Type: Application
    Filed: October 17, 2006
    Publication date: April 17, 2008
    Inventors: Tatiana N. Romanova, Ed Sung, Russell J. Schwartz