The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2026
Filed:
Nov. 15, 2022
Raytheon Company, Arlington, VA (US);
Cecilia Tonelli, Rome, IT;
Tuhin Sahai, San Francisco, CA (US);
Raytheon Company, Arlington, VA (US);
Abstract
A process for computing the optimal solution to the quadratic assignment problem (QAP) defined on lattices includes storing facility data as facilities in a facility grid with facility tiles. Location data are stored as locations in a location grid with location tiles. Each facility tile is associated with a location tile and each facility in each facility tile is associated with a location in an associated location tile. A flow function is identified as distances between the plurality of facilities in the facility grid, and a distance function is identified as distances between the plurality of locations in the location grid. An association function relating the facilities to the locations is identified such that a solution with a low-cost function depending on the flow function and the distance function is found.