Patents by Inventor Gerhard Rehm

Gerhard Rehm 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).

  • METAL CLEANER CONTAINING POLYETHYLENE IMINE
    Publication number: 20070270323
    Abstract: A process for cleaning metal surfaces is provided using a neutral industrial cleaner, which comprises a combination of non-ionic surfactants and/or glycol ethers, and polyethylene imine. The cleaner has a demulsifying effect on fats and/or oils on metal surfaces and in the cleaning solution allowing separation and reuse of the cleaner. The cleaner is low-foaming and can advantageously be used in spray application.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 22, 2007
    Inventors: Bernd Stedry, Andreas Heinze, Werner Opitz, Gerhard Rehm