Expert Witness Patents

News & Analysis as of

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

The PTAB Warns Attorney That Speaking Objections May Warrant Exclusion of Expert's Testimony

In an inter partes review Medtronic Inc. et al. v. Troy R. Norred, M.D., the Petitioner sought guidance from the Board regarding the Patent Owner's objections during the deposition of an expert appearing on behalf of the...more

PTAB Shows a Willingness to Intervene in Deposition Disputes

Experienced district court litigators are reluctant to “call the judge” when a dispute arises during a deposition. Judges do not want to take the time to deal with mundane discovery disputes and parties do not want to get on...more

Motion to Strike Expert Testimony Denied Even Though Expert Had Never Used Product and Examined Only Selected Pieces of Source...

In this patent infringement action, the defendant moved to exclude portions of the plaintiff's (Dr. Bambos') expert testimony. Defendant argued that Dr. Bambos lacks familiarity with the infringing products, relied too...more

PTAB's Guidelines for Foreign Language Depositions

In the Ariosa Diagnostics v. ISIS Innovation Limited inter partes review, the PTAB set for the guidelines for taking depositions in a foreign language as required by 37 C.F.R. § 42.53(c). In addition to the requirement of...more

Lost (without) the Translation

In Wintek Corporation v. TPK Touch Solutions, Inc., IPR2013-00567, Paper 40, IPR2013-00568, Paper 41 (August 28, 2014), when petitioner arrived at the deposition of patent owner’s expert, it was surprised to find that the...more

Judge Forrest authorizes depositions of declarants to support defendant’s motion for summary judgment

Following defendant Monster’s filing of a motion for summary judgment, the patentee provided declarations by two expert witnesses in opposition. Monster noticed depositions of these experts, but the patentee moved for a...more

Court Excludes Plaintiff's Experts Where Experts Failed to Comply with Rule 26 Disclosures

In this patent infringement action, the defendants, Hangzhou Langhong Technology Co., Ltd. and Langhong Technology USA Inc., moved to exclude the testimony of plaintiff's experts on infringement and damages. The district...more

Judge Crotty denies attorney and expert fees

In a matter related to Case no. 1:13–cv-01358–PAC, Abbvie requested attorney and expert fees following the court’s determination that U.S. Patent No. 7,846,442 (“Methods of treating rheumatoid arthritis with an anti-TNF-alpha...more

Defeating Indefiniteness Challenge with Petitioner’s Witness

In eBay Inc. v. Lockwood, CBM2014-00025, Paper 34, CBM2014-00026, Paper 35 (August 12, 2014) the Board denied eBay’s motion to expunge the declaration of its expert, directed to unpatenability of the prior art, which eBay...more

Golden Bridge v. Apple: No Third Bite at the Apple as Damage Expert Excluded After Two Failed Reports and Where Trial Was Already...

Two weeks earlier, the court excluded the expert opinion and testimony of Plaintiff Golden Bridge Technology's ("GBT") damages expert. Nonetheless, the court gave GBT one week to submit a new report based on a new theory....more

Invalidity Expert Excluded Where Expert Failed to Conduct a Proper Written Description Analysis

Plaintiff Trading Technologies International, Inc. ("TT") moved to strike the invalidity expert report of the defendant, CQG. TT made two arguments its motion: " that Dr. Mellor failed to conduct a proper written description...more

Credibility Challenges Posed by the Eccentric Inventor Witness

Eccentric inventors can be their own worst enemies at depositions and on the witness stand at trial. General Electric Co. v. Wilkins (Fed. Cir., May 8, 2014) is a recent case on point. The General Electric case involved a...more

Plaintiff Precluded from Using Deposition Testimony of Defense Expert Where Plaintiff Procured the Absence of the Expert

Novartis sought to use the deposition testimony of defendant's expert at trial under Fed.R.Civ.P. 32(a)(4)(B). As explained by the district court, "the Rule provides that a party may use the deposition of a witness for any...more

Infringement Expert Excluded Where Expert Did Nothing More Than Parrot Claim Language in Infringement Analysis

Plantronics, Inc. ("Plantronics") filed a patent infringement action against ALIPH, Inc. ("ALIPH"). After expert reports were submitted, ALIPH moved to exclude the expert report of Plantronics' infringement expert. At...more

Summary Judgment Motion Denied Where Expert's Opinion Established a Triable Issue of Fact on Infringement

Geotag, Inc ("Geotag") filed a patent infringement action against Frontier Communications Corp. ("Frontier"). Frontier filed a motion for summary judgment of non-infringement, arguing that no triable issue of material fact...more

Don't Rely On Your Expert's Speculation To Save You From Summary Judgment

Just because an expert says something is so doesn't mean that it is. That's the lesson of Judge Gale's ruling last week in Carter v. Clements Walker. He rejected the evidentiary value of an expert's report stating that...more

Taser Takes Down Expert in Patent Infringement Action Where Electrical Engineer Was Not Qualified to Offer Expert Opinions on...

Taser International, Inc. ("Taser') proceeded to trial on its patent infringement action against Karbon Arms, LLC ("Karbon Arms"). After expert reports and with the trial approaching, Taser filed a motion to exclude the...more

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