United States Federal Circuit

While the words "composed of" in claim may generally be synonymous with "consisting of," there may be circumstances where a broader meaning is more appropriate. In this case, "composed of" should be construed as "consisting essentially of."

Appellate Information

• Decided 02/06/2001
• Published 02/06/2001

Judges

• MICHEL, Circuit Judge., Before MICHEL, LOURIE, and BRYSON, Circuit Judges.

Court

• United States Federal Circuit

Counsel

• For Appellant:
  
• Richard D. Kelly,Oblon, Spivak, McClelland, Maier & Neustadt, P.C., of Arlington, Virginia, argued for plaintiffs-appellants.   With him on the brief were Stephen G. Baxter, William T. Enos, Andrew M. Ollis, and Mandy M. Petrocelli.


• For Appellees:
  
• V. Bryan Medlock, Jr., Sidley & Austin, of Dallas, Texas, argued for defendants-appellees.   With him on the brief was Nathanael G. Barnes.