ALEXANDRIA, Va., Feb. 25 -- Allegro MicroSystems, Worcester, Massachusetts, has been assigned a patent (9,575,103) developed by two co-inventors for an "integrated circuit and associated methods for measurement of an external impedance." The co-inventors are Glenn A. Forrest, Bow, New Hampshire, and Wei Zhang, Nashua, New Hampshire.

The patent application was filed on May 30, 2014 (14/291,597). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser?S . . .