US Patent Issued to Amazon Technologies on March 24 for "Appliance energy estimation based on voltage sensing" (Washington, California Inventors)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,949, issued on March 24, was assigned to Amazon Technologies Inc. (Seattle).

"Appliance energy estimation based on voltage sensing" was invented by Henning Lange (Seattle), Krzysztof Marcin Walczak (Sammamish, Wash.), Naveen Ramakrishnan (Redmond, Wash.) and Gareth James Selfe (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described are systems, methods, and apparatus that determine appliance energy usage based on voltage signals sensed at a standard electrical outlet anywhere in an electrical circuit of a location, such as a home or residence, without the need of current measurement of the electrical circuit. Voltage measurements at...