BOSTON - Webstone Co. Inc. and Raven Products have settled a patent infringement lawsuit between the two companies.
The lawsuit, filed on June 30 in U.S. District Court, charged Raven Products with patent infringement of Webstone's patented Isolator® Uni-Flange ball valve, U.S. Patent No. 6,779,561. Webstone manufactures several products developed exclusively for professional contractors. Besides the ball valves in question, those products are: the Isolator® EXP tankless water heater service valve set, and the Pro-Pal® line of step-saving valves. All of these products are either patented or have patents pending.