ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,902, issued on March 18, was assigned to Schlage Lock Co. LLC (Carmel, Ind.).
"Portable lock apparatus with status indicator" was invented by Marco Stunnebrink (Horssen, Netherlands) and Arthur Van Beek (Utrecht, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "An example ring lock generally includes a housing, a shackle, a lock mechanism, and an indicator. The shackle is mounted to the housing for movement between a first position and a second position. The lock mechanism is configured to selectively retain the shackle in at least one of the first position or the second position. The indicator is operable to selectively display an indici...