ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,437, issued on March 11.

"Sill pan system for doors and methods of making and using the same" was invented by Andrew H. Bishop (Carthage, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention is a sill pan system that can be targeted for commercial and/or multi-family use and that works with ADA compliant thresholds. Specifically, the sill pan system includes a left end segment that is configured to fit in the bottom left corner of a framed-in door opening. The system also includes a right end segment that is configured to fit in the bottom right corner of a framed-in door opening. The left and right end segments are joined together at ...