51 Fed. R. Evid. Serv. 35 (Cite as: 183 F.R.D. 458) United States District Court, D. Maryland? Baltimore Division. NUTRAMAX LABORATORIES, INC., Plaiitiff, TWIN LABORATO,IES INC., et. al., De- fendants. No. Civ.AB-97-787. Dec. 7, 1998. In six patent infringement suits consol- idated for discovery, d