In
August 2007, Grundfos Pumps filed a patent infringement action against Laing
Thermotech involving two patents that protect
Grundfos’ Comfort System domestic hot water technology.
Laing manufactured and
sold its Autocirc2 system, which incorporates a water pump and bypass valve
combination. Grundfos alleged that Laing’s Autocirc2 System infringed on the
patents-in-suit.