ALEXANDRIA, Va., March 22 -- ABL IP Holding, Conyers, Georgia, has been assigned a patent (9,600,983) developed by five co-inventors for a "method and system for dynamic reassignment of an identification code in a light-based positioning system." The co-inventors are Stephen H. Lydecker, Snellville, Georgia, Konstantin Klitenik, Cambridge, Massachusetts, Daniel Ryan, San Francisco, Emanuel Paul Malandrakis, Boston, and Mitri J. Abou-Rizk, Newton, Massachusetts.

The patent applicat . . .