Patents Assigned to PRETTL
  • Water valve with supported opening function
    Patent number: 9033305
    Abstract: Water valves and methods of regulating fluid flow for low ambient pressure water sources that reduce the amount of filtration needed for valve mechanisms operating in the water source.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 19, 2015
    Assignee: PRETTL
    Inventor: Philip Schreier