ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,490,690, issued on Dec. 9, was assigned to AIRFORESTRY AB (Uppsala, Sweden).

"Method and system for remote or autonomous holding a tree trunk" was invented by Markus Romar (Uppsala, Sweden), Olle Gelin (Alunda, Sweden) and Mauritz Andersson (Uppsala, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a system for remote and/or autonomous holding at least a portion of a tree trunk, said system comprising: a remotely and/or autonomously controlled Unmanned Aerial Vehicle (100), UAV, at least one remotely and/or autonomously controlled means (105) for holding at least a portion of a tree trunk attachable to said UAV (100), means ...