ALEXANDRIA, Va., Dec. 9 -- 1087 Systems, Cambridge, Massachusetts, has been assigned a patent (9,835,552) developed by Matthias Wagner, Cambridge, Massachusetts, for a "cytometry system with interferometric measurement." The abstract states: "This disclosure concerns methods and apparatus for interferometric spectroscopic measurements of particles with higher signal to noise ratio utilizing an infrared light beam that is split into two beams. At least one beam may be directed through a measureme . . .