ALEXANDRIA, Va., June 16 -- United States Patent no. 12,658,761, issued on June 16, was assigned to TelemeTrak Inc. (Oakland, Calif.).

"Monitoring systems for shipping containers" was invented by Frederick Steinway Ziegler (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "Interested parties would like to track the location of one or more towed transport platforms continuously when they are in motion. Existing monitoring systems are powered by a combination of solar power, batteries, and intermittent tractor platform power for electrical power. All of these power sources have limitations in providing power when a towed transport platform is in motion. Solar power is not available at night. Batteri...