Patents by Inventor Bogdan Roman Zdrojewski

Bogdan Roman Zdrojewski 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).

  • Railroad wheel with wear resistant flange
    Patent number: 9381771
    Abstract: A railroad wheel has a wear resistant flange (3) or tire or rim, comprising the surfaces, which can touch the rail during travelling. On the circumferential outer surface (4) of flange (3) of the wheel (2) an anti-abrasion layer (1) is placed in a durable manner.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: July 5, 2016
    Assignee: PLASMA SYSTEM S.A.
    Inventor: Bogdan Roman Zdrojewski
  • RAILROAD WHEEL WITH WEAR RESISTANT FLANGE
    Publication number: 20110101717
    Abstract: The present disclosure relates to the railroad wheel with wear resistant flange (3) or tire or rim, including the surfaces, which can touch the rail during traveling. The essence of the disclosure consists therein, that on the circumferential inner surface (4) of flange (3) of the wheel (2) is placed in durable manner an anti-abrasion layer (1).
    Type: Application
    Filed: June 4, 2009
    Publication date: May 5, 2011
    Inventor: Bogdan Roman Zdrojewski