PLC Multipoint

In the 1980s an inventor, Fred Blake, created the very first photosensor. He then founded Multipoint Control and patented his sensor design. At this same time a businessman, Fred Dittmann, was operating a company called AD Controls. This company manufactured industrial and process control systems. Fred Blake and Fred Dittmann were colleagues and friends, collaborating on several projects in the 1980s. As it turned out, Fred Blake was unhappy managing his company. An inventor through and through, he wanted time to create. He approached his friend Fred Dittmann for advice on what to do with his company. After much consideration, Fred Dittmann purchased the business along with the sensor patents. The resulting business was named PLC Multipoint, which Fred Dittmann formed with his son Norm in 1991.