MARKMAN v. WESTVIEW INSTRUMENTS, INC.

No. 95-26.

517 U.S. 370 (1996)

MARKMAN et al. v. WESTVIEW INSTRUMENTS, INC., et al.

United States Supreme Court.

Decided April 23, 1996.


Attorney(s) appearing for the Case

William B. Mallin argued the cause for petitioners. With him on the briefs were Timothy P. Ryan, Timothy S. Coon, Lewis F. Gould, Jr., and Stephan P. Gribok.

Frank H. Griffin III argued the cause for respondents. With him on the brief were Peter A. Vogt and Polly M. Shaffer.*

Souter, J., delivered the opinion for a unanimous Court.


Justice Souter, delivered the opinion of the Court.

The question here is whether the interpretation of a socalled patent claim, the portion of the patent document that defines the scope of the patentee's rights, is a matter of law reserved entirely for the court, or subject to a Seventh Amendment guarantee that a jury will determine the meaning of any disputed term of art about which expert testimony is offered. We hold that the construction of a patent, including...

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