 This licensed technology became the foundation for Mitutoyo's video and laser-based CMMs.In 1996, Robotic Vision Systems, Inc. (RVSI) first brought a patent infringement lawsuit against VIEW Engineering related to the coplanarity measurement of packaged semiconductor devices.In 2000, RVSI's patent was finally declared invalid and the U.S. District Court for the Central District of California ruled in favor of VIEW Engineering.