A Utah-based start-up says it has exclusive business rights to the use of smartphones and other electronic devices for tracing people who have come into contact with a person with Covid-19, setting up a potential patent-infringement battle with some of the biggest technology companies.Blyncsy, which describes itself as a “movement and data intelligence” company headquartered in Salt Lake City, holds the business method patent for “tracking proximity relationships and uses thereof” by…
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