United States Federal Circuit

In construing patent claims, the district court may not read into the language limitations which are not explicit in the claim, even if the limitations appear in the preferred embodiment.

Appellate Information

• Decided 07/20/2001
• Published 07/20/2001

Judges

• DYK, Circuit Judge., Before MAYER, Chief Judge, LINN, and DYK, Circuit Judges.

Court

• United States Federal Circuit

Counsel

• For Appellant:
  
• Constance S. Huttner,Skadden, Arps, Slate, Meagher & Flom LLP, of New York, New York, argued for plaintiff-appellant.   With him on the brief was Daniel A. DeVito.   Of counsel was Joel K. Goldman, Husch & Eppenberger, of Kansas City, Missouri.


• For Appellees:
  
• Randolph J. Huis, Volpe and Koenig, P.C., of Philadelphia, PA, argued for defendant-appellee.