ALEXANDRIA, Va., Oct. 30 -- ArQule, Woburn, Massachusetts, has been assigned a patent (8,871,933) developed by six co-inventors for compositions and methods "for preparing purified pyrroloquinolinyl-pyrrolidine-2,5-dione." The co-inventors are Neil R. Barnes, Melrose, Massachusetts, Martin P. Redmon, Oxford, Massachusetts, David P. Reed, Salem, New Hampshire, Christopher A. Lee, Freeville, New York, Jian-Xie Chen, Manlius, New York, and John C. Kane, West Monroe, New York.

The pat . . .