Patents by Inventor Zhigiang Alex He

Zhigiang Alex He 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).

  • Imidazolidinone derivatives as corrosion inhibitors
    Patent number: 5746946
    Abstract: The invention relates to imidazolidinone derivatives formed from the reaction of (1) a substituted-ethyl imidazolidinone; (2) substituted ethyl/propyl propylene urea or (3) a cyclic propylene urea with: (a) a C.sub.1 -C.sub.24 alkyl or a C.sub.3 -C.sub.24 alkenyl substituted anhydride or, (b) a C.sub.3 -C.sub.24 carboxylic acid or corresponding ester; their compositions and use as corrosion inhibitors and/or surfactants.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: May 5, 1998
    Assignee: King Idustries, Inc.
    Inventors: Zhigiang Alex He, Werner Joseph Blank