Patents by Inventor M. Anthony Johnson

M. Anthony Johnson 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).

  • Composition useful for stripping photoresist polymers and method
    Patent number: 4592787
    Abstract: This invention is a composition suitable for stripping cross-linked photoresist polymer which comprises(a) a lower alkyl monoether of a propylene glycol, or a mixture of lower alkyl monoethers of propylene glycol;(b) a C.sub.2-6 alkanol;(c) an alkanolamine; and(d) a base.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: June 3, 1986
    Assignee: The Dow Chemical Company
    Inventor: M. Anthony Johnson