ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,869, issued on June 23, was assigned to MI Windows and Doors LLC (Gratz, Pa.).

"Mull system for windows and doors" was invented by Brandon R. Snyder (Lykens, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for mulling a plurality a first fenestration frame and a second fenestration frame including a primary mull connector that is sliding received between the first and second fenestration frames. The primary mull connector having a first end with a jamb engagement portion and a second end that is free of a jamb engagement portion."

The patent was filed on Nov. 9, 2022, under Application No. 17/984,174.

*For further information, includin...