IN RE DILLON

Attorney(s) appearing for the Case

James H. Laughlin, Jr., Benoit, Smith & Laughlin, Arlington, Va., argued for appellant. With him on the brief was Gregory F. Wirzbicki, Unocal Corp., Brea, Cal., of counsel.

Fred E. McKelvey, Sol., Office of the Sol., Arlington, Va., argued for appellee. With him on the brief were Richard E. Schafer, Associate Sol. and Joseph F. Nakamura, Washington, D.C.

Allen S. Melser and Linda J. Shapiro, Mason, Fenwick & Lawrence, Washington, D.C., were on the brief for amicus curiae Chemical Mfrs. Ass'n.

William S. Thompson, President, American Intellectual Property Law Ass'n, Arlington, Va., was on the brief for amicus curiae American Intellectual Property Law Ass'n. With him on the brief were Donald R. Dunner, Herbert H. Mintz, and Thomas L. Irving, Finnegan, Henderson, Farabow, Garrett & Dunner, Washington, D.C. Also on the brief was Harold C. Wegner, Wegner & Bretschneider, Washington, D.C., of counsel.

Professor Irving Kayton, Washington, D.C., was on the brief for amicus curiae Professor Irving Kayton.

Robert A. Chittum, President, Rochester Patent Law Ass'n, Rochester, N.Y., was on the brief for amicus curiae Rochester Patent Law Ass'n.

Before NIES, Chief Judge, RICH, Circuit Judge, COWEN, Senior Circuit Judge, MARKEY, NEWMAN, ARCHER, MAYER, MICHEL, PLAGER, LOURIE, CLEVENGER, and RADER, Circuit Judges.