Patents by Inventor Jan Geraedts

Jan Geraedts 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 coated proppants
    Patent number: 9382469
    Abstract: The present invention relates to a process for the production of coated proppants, proppants obtainable by such a process, uses thereof and processes using the proppants.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: July 5, 2016
    Assignee: ASHLAND-SUDCHEMIE-KERNFEST GMBH
    Inventors: Peter Kuhlmann, Reinhardt Winter, Jan Geraedts