U.S. Patent and Trademark Office sides with South-Tek Systems overturning U.S. Patent No. 9,186,533
WILMINGTON, NC – On January 11th, 2018, the U.S. Patent office sided with South-Tek Systems and invalidated all claims of the Engineered Corrosion Solutions (ECS) Patent Number 9,186,533 as being obvious to one of ordinary skill in the art of fire protection sprinkler systems. This means that prior art, such as publications and patents, demonstrated […]