ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,740, issued on March 17, was assigned to MICROSOFT TECHNOLOGY LICENSING LLC (Redmond, Wash.).

"Access control using mediated location, attribute, policy, and purpose verification" was invented by Ramarathnam Venkatesan (Redmond, Wash.), Nishanth Chandran (Bangalore, India), Ganesh Ananthanarayanan (Sammamish, Wash.), Panagiotis Antonopoulos (Redmond, Wash.), Srinath T. V. Setty (Redmond, Wash.), Daniel John Carroll Jr. (Columbia, Md.), Kiran Muthabatulla (Sammamish, Wash.), Yuanchao Shu (Kirkland, Wash.) and Sanjeev Mehrotra (Kirkland, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An access control system is disclosed for controlling access ...