Gregory A. Castanias

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Washington,  DC  U.S.A.

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Practice Areas

  • Litigation
  • Appellate Practice
  • Intellectual Property
  • International Arbitration
University Wabash College, A.B., English/Philosophy, 1987
Law SchoolIndiana University, J.D., 1990
Admitted1993, Virginia; 1994, District of Columbia

Order of the Coif. Law Clerk to Judge Pratt, U.S. Court of Appeals, Second Circuit, 1991-1992.


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Divided Federal Circuit Panel Stands by the Single Entity Rule for Direct Patent Infringement
Gregory A. Castanias,Matthew J. Silveira,Jennifer L. Swize, May 26, 2015
On May 13, 2015, in Akamai Technologies, Inc. v. Limelight Networks, Inc., a divided Federal Circuit panel again concluded that direct infringement liability of a method claim exists only "when all of the steps of the claim are performed by or attributed to a single entity."

Claim Construction, Findings of Fact, and Indefiniteness in the Wake of Teva v. Sandoz
Gregory A. Castanias,Calvin P. Griffith,Tharan Gregory Lanier,Matthew J. Silveira,Jennifer L. Swize, May 14, 2015
In its January 2015 decision in Teva Pharmaceuticals USA, Inc. v. Sandoz, Inc., the United States Supreme Court held, contrary to the Federal Circuit's longstanding practice, that a district court's claim constructions are to be reviewed on appeal under the two-part test set forth in Federal Rule...

The Significance of In re Cuozzo and its Ongoing Spot in the Limelight
Gregory A. Castanias,David B. Cochran,Matthew W. Johnson,Jennifer L. Swize, May 14, 2015
When the United States Court of Appeals for the Federal Circuit issued its decision in In re Cuozzo Speed Technologies in February 2015¿the first decision in an appeal from an inter partes review ("IPR") conducted by the Patent Trial and Appeal Board (the "PTAB")¿both the Patent...

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Office Information

Gregory A. Castanias

51 Louisiana Avenue, N.W.
WashingtonDC 20001-2113


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