Patents by Inventor Richard Stimek

Richard Stimek 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).

  • Separation of amine from a phenolic compound
    Publication number: 20050080294
    Abstract: A process comprises contacting a product mixture with a base, optionally in the presence of a polyhydric alcohol, to produce a base-treated mixture and distilling the base-treated mixture in which the product mixture comprises an aromatic amine and a phenolic compound.
    Type: Application
    Filed: March 11, 2004
    Publication date: April 14, 2005
    Inventors: Carl Renner, Richard Dubnansky, Freddison Parsons, Richard Stimek, Zhihong Wu