Patents by Inventor Wahl Friedrich

Wahl Friedrich 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).

  • Anticorrosive pigments
    Patent number: 7438881
    Abstract: The invention submitted concerns anticorrosive pigments of aluminum orthophosphate, their application as anticorrosive pigments in coating agents, as well as a method for their manufacturing.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: October 21, 2008
    Assignee: BK Giulini GmbH
    Inventors: Thomas Staffel, Wahl Friedrich, Angelika Metz
  • Anticorrosive pigments
    Publication number: 20070272117
    Abstract: The invention submitted concerns anticorrosive pigments of aluminum orthophosphate, their application as anticorrosive pigments in coating agents, as well as a method for their manufacturing.
    Type: Application
    Filed: September 14, 2006
    Publication date: November 29, 2007
    Inventors: Thomas Staffel, Wahl Friedrich, Angelika Metz