Patents Assigned to United Brass Works, Inc.
  • Valve
    Patent number: D489797
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: May 11, 2004
    Assignee: United Brass Works, Inc.
    Inventors: Thomas Hall, Michael A. Berkelhammer
  • Sight glass for sprinkler system lines
    Patent number: D412454
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: August 3, 1999
    Assignee: United Brass Works, Inc.
    Inventor: Michael A. Berkelhammer