ALEXANDRIA, Va., July 23 -- United States Patent no. 12,367,591, issued on July 22, was assigned to Falk PLI Engineering and Surveying Inc. (Portage, Ind.).

"Four-dimensional crane rail measurement systems" was invented by Michael Falk (Portage, Ind.), Sagar Deshpande (Big Rapids, Mich.), Zhengwei Davis Zhang (Burns Harbor, Ind.) and Nathan Plooster (Michigan City, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for conducting a non-contact survey of an overhead crane runway system using a survey apparatus that is alternately located in the crane bay or on a crane bridge girder. Disclosed more particularly is a system for testing an overhead crane runway beam 3D alignment or an overhead crane ru...