ALEXANDRIA, Virginia, May 30 -- BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC., Nashua, New Hampshire has been assigned a patent (No. US 11660672 B2, initially filed Sept. 11, 2019) developed by three inventors John J Polizotti, Pittsfield, New Hampshire; Craig J. Paggi, Pittsfield, New Hampshire; and Michael J. Shaw, Epsom, New Hampshire, for "3D printing of high stiffness-to-weight reflective optics." . . .