Patents by Inventor Auer Gerhard

Auer Gerhard 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).

  • Reducing agent for the soluble chromate content of cement and methods for production thereof
    Patent number: 8808451
    Abstract: The invention relates to a reducing agent for the soluble chromate content of cement and to methods for the production thereof, which comprise concentrating an used sulfuric acid, containing iron (II) sulfate, and separating the sulfuric acid from the obtained precipitate which contains iron (II) sulfate.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: August 19, 2014
    Assignee: Crenox GmbH
    Inventors: Michael Vössing, Auer Gerhard, Benno Laubach, Detlef Klein, Werner Schuy, Klaus Köllisch, Erwin Weiss, Werner Bahl, Philip Reese