The Patent Corner

If you search US Patents with Mallicoat in all fields, you'll see over 150 hits (don't count those of my distant cousin for drink holders!)

The first one, from 1987 is for an electronic whiteboard that uses ultrasonic triangulation and a 915MHz radio link

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The most recent, is December 13, 2015: "Virtual Skylight with Synchronous Sunlight Sensor"