Patents by Inventor Ju/ rgen Niemann

Ju/ rgen Niemann 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).

  • Process for the production of a multicoat finish and aqueous basecoats suitable for this process
    Patent number: 5502101
    Abstract: The invention relates to basecoats for the production of finishes of the basecoat/clearcoat type which comprise a water-thinnable polyacrylate resin which can be obtained by polymerizing, either successively or in part amounts, monomers containing carboxyl groups and monomers free from carboxyl groups in an organic solvent to form a polyacrylate resin which is neutralized, at least partially, and dispersed in water.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: March 26, 1996
    Assignee: BASF Lacke + Farben, AG
    Inventors: Stephan Schwarte, Arnold Dobbelstein, deceased, Ju/ rgen Niemann, Walter Lassmann, Susanne Piontek, Ulrich Poth, Klaus Eikelmann