Patents by Inventor Jeffery C.Y. Chang

Jeffery C.Y. Chang 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).

  • Water soluble organosiloxane compounds
    Patent number: 5565518
    Abstract: Water soluble organosiloxane compounds are provided comprising an oligomer incorporating an addition product of at least two reactants wherein one reactant is at least one 3-glycidoxypropylalkoxy siloxane and the other reactant is at least one secondary hydroxyalkyl amine, optionally, an alkoxysilane different than 3-glycidoxypropylalkoxysilane; optionally, a primary or secondary amine different than the secondary hydroxyalkyl amine; and water.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: October 15, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John J. Stofko, Jr., Jeffery C.Y. Chang