Patents by Inventor Jan Leu

Jan Leu 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 stripping polymer polyols
    Publication number: 20080033139
    Abstract: The invention relates to a process for the purification of polymer polyols by stripping using packed columns.
    Type: Application
    Filed: June 22, 2007
    Publication date: February 7, 2008
    Inventors: Michael Brockelt, Ludwig Deibele, Manfred Dietrich, Markus Hadley, Jan Leu, Guido Naberfeld, Ralf Dohrn