ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,688, issued on May 20, was assigned to Niagara Bottling LLC (Diamond Bar, Calif.).

"Container finish portion with polished buffer zone" was invented by Jay Clarke Hanan (Diamond Bar, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A finish portion of a preform for rotatably engaging with a closure to seal contents within an interior of a container includes a body that begins at an opening to the interior, a sealing surface adjacent to the opening and including a first polished buffer zone configured to cooperate with a plug seal, and a transition surface extending from the sealing surface to a narrower handling surface. The first buffer zone i...