ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,828, issued on March 17, was assigned to Andersen Corp. (Bayport, Minn.).

"Coastal impact resistant fenestrations including corner key with overlap geometry" was invented by Craig Michael Johnson (North Oaks, Minn.) and Christopher Michael Hanson (Fridley, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments herein relate to fenestrations, such as windows and doors, exhibiting coastal impact performance. In a first aspect, an impact-resistant fenestration unit can be included having a frame assembly including a sill, a head jamb, and two opposed side jambs. A bottom sash can be included having a bottom rail, a check rail, and two oppose...