Patents Assigned to Black Rock Trading, LLC
  • Ball launcher
    Patent number: D674851
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: January 22, 2013
    Assignee: Black Rock Trading, LLC
    Inventors: Kent B. Osborne, Brad B. Osborne, Blake B. Osborne, Travis D. Kinnersley, William J. Hendricks