Patents by Inventor Michael J. Grasshoff

Michael J. Grasshoff 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 preparing polymeric oximes
    Patent number: 4350801
    Abstract: A process for preparing high molecular weight polymeric ketoximes and aldoximes is disclosed which comprises providing a solution of a monomeric ketoxime or aldoxime in an aqueous acidic solvent system, the solution having a pH of up to about pH 1.5, and polymerizing the dissolved monomeric ketoxime or aldoxime in the presence of an aqueous acid-soluble polymerization initiating agent.
    Type: Grant
    Filed: February 27, 1981
    Date of Patent: September 21, 1982
    Assignee: Polaroid Corporation
    Inventor: Michael J. Grasshoff