Expert Witness Patents

News & Analysis as of

Attorney-Client Privilege Held Not to Apply to Nonreporting Employee/Expert

Many years ago, we represented a client in a quandary. (We know, we know: that’s pretty much always the case.) The product had been sold for many decades, the early history was important in marshalling a defense, and there...more

PTAB Institution Rate Continues To Lag Behind 2014 Rate, Highlighting Need For Expert Reports to Adequately Support Petition

Data released by the USPTO Patent Trial and Appeal Board (PTAB) for the Fiscal Year 2016 reveals that the PTAB is granting petitions to review at a rate similar to FY 2015, and significantly below the higher rate in FY 2014....more

Perspectives On The PTAB - Inaugural Issue

We are pleased to share this Perspectives on the PTAB newsletter. Its content is directed toward providing information and analysis of the decisions made by the Patent Trial and Appeal Board. We hope that this newsletter...more

No “Last Resort” Striking of Undisclosed Expert Opinion

Order Granting-in-Part Motion to Strike Declaration of Miguel Gomez, VIA Techs., Inc. et al. v. ASUS Computer Int’l, et al., Case No. 14-cv-03586 (Magistrate Judge Paul Grewal) - In a recent order in VIA Techs., Inc. v....more

Experts Ordered to Produce Draft Reports Exchanged with Other Experts

In this patent infringement action, the plaintiff, BRP, alleged three counts of patent infringement against Arctic Cat concerning snowmobile frame construction and snowmobile rider positioning. BRP alleged patent infringement...more

No Mention Of Damages Is Permitted During Liability Phase Of Trial

Amgen Inc., et al. v. Sanofi, et al., C.A. No. 14-1317 – SLR (Consolidated), March 2, 2016 - Robinson, J. Order resolving pre-trial evidentiary issues. Plaintiffs seek to preclude defendants from relying on two...more

Plaintiff Seeks to Substitute Damage Expert after Expert Retires

In this patent infringement action, the plaintiff sought to substitute its damage expert because its current damage expert had retired. The plaintiff also sought to withdraw the retired expert's damage report....more

WARF v. Apple: Motion to Exclude Live Witness Granted Where Apple Had Previously Sought to Rely Solely on Deposition Testimony

As the Wisconsin Alumni Research Foundation ("WARF") patent infringement case against Apple approached trial, Apple attempted to call a witness live that it had previously informed WARF's counsel would be called by...more

CLAIM CONSTRUCTION “GAMESMANSHIP”? Quantum Corporation’s Expert Ordered To Sit For Further Deposition On Claim Construction

Order Re Crossroads’ Motion To Strike, Quantum Corporation v. Crossroads Systems Inc., Case No. C 14-04293 WHA (Judge William Alsup) - Expert witnesses are often used during patent claim construction to offer extrinsic...more

U.S. International Trade Commission Publishes Proposed Changes to Procedural Rules of Practice

The International Trade Commission proposed a series of new procedural rules, which were published in the Federal Register on September 24, 2015. This blog post provides a summary of the more notable proposed changes to the...more

District Court Denies Motion to Exclude CEO from Providing Expert Testimony on Infringement

Defendant filed a motion to strike plaintiff's expert report on infringement, asserting that the report failed to comply with Fed.R.Civ.P. 26 because, among other things, the report did not constitute a written report under...more

Enovsys v. AT&T: Court Excludes Plaintiff's Damage Expert for Failure to Apportion and Sua Sponte Bifurcates Trial into Liability...

After the court struck plaintiff's damage expert's report for failing to tie damages to the limited feature of the patented invention, the court permitted the plaintiff to submit a supplemental expert report. Once the...more

District Court Excludes Plaintiff's Infringement Expert for Conflict of Interest

Mobile Telecommunications Technologies, LLC ("Mobile") filed a patent infringement action against LG Electronics Mobilecomm U.S.A. ("LG"). As trial approached, LG filed a motion to disqualify Mobile's infringement expert, Dr....more

April Court Decision Round-Up

Note: Beginning this month, IP Law Tracker will highlight significant intellectual property decisions from the U.S. Court of Appeals for the Sixth Circuit and the U.S. District Courts for the Eastern District of Michigan and...more

No Special Rules Regarding Consideration of Expert Declarations in IPR Proceedings - In re International Business Machines Corp.

In a non-precedential opinion, the U.S. Court of Appeals for the Federal Circuit declined to direct the U.S. Patent and Trademark Office (PTO) to create a particularized written standard for consideration of inter partes...more

Globus Argues Expert’s Faked Credentials Warrants New Trial

In 2011, DePuy-Synthes, a subsidiary of Johnson & Johnson Inc. sued Globus Medical, Inc. in the United States District Court for the District of Delaware. In that suit, Synthes alleged that Globus had infringed three Synthes...more

District Court Excludes Prior Art References in Expert Report That Were Not Included in Invalidity Contentions

After the district court adopted a specialized scheduling order that was based on local patent rules in other districts, the plaintiffs served detailed infringement contentions and the defendant served detailed invalidity...more

Court Strikes Expert Opinions, No Punishment Intended

Order Granting Takeda’s Motion to Strike, Takeda Pharmaceutical Co. LTD., et al., v. TWi Pharmaceuticals, Inc., Case No. 13-cv-02420-LHK (Judge Lucy H. Koh) - The Northern District Patent Local Rules are specifically...more

Reduced Deposition Time in Related AIA Proceedings - Petroleum Geo-Services Inc. v. WesternGeco LLC

In an order regarding deposition times for expert witnesses in three related inter partes reviews (IPRs), the U.S. Patent and Trademark Office’s Patent Trial and Appeal Board (PTAB or Board) ruled that total deposition time...more

Mobile Medical’s Validity Experts Get To Stay Behind The Wheel

As the established gatekeepers with respect to expert testimony, district courts have broad discretion on whether to admit or exclude such evidence. The Vermont district court recently opted to deny patentee defendant...more

Declarant Must Be Made Available for Deposition in the United States - Square, Inc. v. REM Holdings 3, LLC

Addressing the location of a deposition of patent owner’s declarant, the U.S. Patent and Trademark Office’s (PTO) Patent Trial and Appeal Board (PTAB or Board) concluded that, absent an agreement between the parties to...more

PTAB Will Not Consider An Expert Report Prepared for Litigation And Created After the Filing of the Petition

In IPR2014-01510, 01511, and 01513, in connection with its preliminary response the Patent Owner Mag Aerospace Industries, LLC, submitted an expert report by its expert in the related litigation. The expert report addressed...more

Unavailability of IPR Witness for Deposition Undercuts Testimony

Testimony from a witness in a prior reexamination, or other, proceeding may be useful information to a party in inter partes review proceedings. The party propounding such testimony should be prepared, however, to produce...more

No Cross-Examination of Expert at the Close of Evidence

A.C. Dispensing Equipment Inc. v. Prince Castle LLC - Addressing the appropriate timing of cross-examination of expert witnesses in an inter partes review (IPR), the U.S. Patent and Trademark Office Patent Trial and...more

Board Declines to Limit Cross Examination

In International Business Machines Corporation v. Intellectual Ventures II LLC, IPR2014-00587, Paper 27 (November 28, 2014), the Board declined to limit the scope of the patent owner’s cross-examination of petitioner’s...more

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