ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,284, issued on Oct. 20, was assigned to Terrasmart Inc. (Cincinnati).

"Apparatus and method for providing active helix prevention in a single axis solar tracker system" was invented by Ben Urbanek (Cincinnati), Coel Schumacher (Auburn, Calif.) and David Compaan (Columbus, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "Apparatus and method for providing active helix prevention for a solar tracker system including a plurality of photovoltaic modules mounted in a single row and at least one drive motor configured to synchronously rotate the plurality of photovoltaic modules about an axis of rotation. First and second angle detectors are provided t...