ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,257, issued on Oct. 7.
"Beehive solar heater" was invented by Steven Ren Stewart (Mapleton, Utah).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention comprises a novel beehive solar heater which can be incorporated into any Langstroth style hive (square boxes) easily for the winter season. It is attachable and detachable. No modifications, meaning permanent physical changes to the hive are required. Winter, and the stress due to cold, is the number one killer of beehives in the United States. This novel beehive solar heater, which is easily installed onto a beehive, can eliminate most of the stress that cause hives to die in colder wi...