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Expert Testimony Summary Judgment Claim Construction

Proskauer - The Patent Playbook

Federal Circuit Affirms That Expert Testimony Must Be Based on Competent and Reliable Evidence

Mirror Worlds Technologies, LLC (“Mirror Worlds”) sued Meta Platforms, Inc. (“Meta”)—formerly Facebook, Inc.—in the Southern District of New York for patent infringement. The lawsuit involved three patents related to storing,...more

McDermott Will & Emery

Equivalence Requires Element-by-Element Proof With Linking Argument

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a district court determination that a patent owner had not provided the “particularized testimony and linking argument” required to demonstrate equivalence under the...more

McDermott Will & Emery

Game Over when Expert Fails to Use Correct Claim Construction

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit concluded that a district court did not abuse its discretion in striking expert testimony where the testimony did not rely on an agreed and court-adopted claim construction....more

Knobbe Martens

Expert Testimony That Contradicts Patent Specification Fails to Create a Genuine Issue of Fact in a Patent Eligibility Dispute

Knobbe Martens on

CAREDX, INC. V. NATERA, INC. Before Lourie, Bryson, and Hughes - Summary: Expert testimony that steps of challenged patent claims were unconventional failed to preclude summary judgment of ineligibility where...more

McDermott Will & Emery

Game Reset: Extrinsic Evidence Can’t Limit Claim Scope Beyond Scope Based on Unambiguous Intrinsic Evidence

The US Court of Appeals for the Federal Circuit reversed a district court’s grant of summary judgment of noninfringement after concluding that the district court erred by relying on expert testimony to construe a claim term...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - February 2019 #3

PATENT CASE OF THE WEEK - CenTrak, Inc. v. Sonitor Technologies, Inc., Appeal No. 2017-2510 (Fed. Cir. Feb. 14, 2019) - In this appeal from the United States District Court for the District of Delaware, the Federal...more

Fenwick & West LLP

Intellectual Property Bulletin - Summer 2018

Fenwick & West LLP on

In This Issue - US Taxation of IP After Tax Reform - U.S. taxation of intellectual property has become astoundingly more complex after the Tax Cuts and Jobs Act. The new rules are so complex that the IRS and Treasury...more

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