ALEXANDRIA, Virginia, March 21 -- SIGMA ADDITIVE SOLUTIONS, INC., Santa Fe, New Mexico has been assigned a patent (No. US 11607875 B2, initially filed Aug. 23, 2021) developed by four inventors Vivek R. Dave, Concord, New Hampshire; R. Bruce Madigan, Butte, Montana; Mark J. Cola, Santa Fe, New Mexico; and Martin S. Piltch, Los Alamos, New Mexico, for "Method and system for monitoring additive manufacturing processes."  more