Patents by Inventor R. R. Patzelt

R. R. Patzelt 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).

  • Organic contaminant removal from paint spray booth water
    Patent number: 5114591
    Abstract: The organic material content of acid break water from the HEC process, or similar waste water, is reduced by adsorption onto macroreticular resin.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: May 19, 1992
    Assignee: Nalco Chemical Company
    Inventors: R. R. Patzelt, M. A. Romba