These records were extracted from public court orders and are awaiting editorial review. Each links to its source; please check the order before relying on it.

How patent experts' opinions have held up when challenged in court.

176 motions to exclude or strike the testimony of 132 damages and technical experts, each linked to the court's record.

Subscribers see how each challenge was decided, the Daubert survival score, and search by court, judge, method and side.

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Expert	Challenges on record	Courts
Jim W. Bergman Damages	6	D. Del., E.D. Tex., N.D. Cal.
Lauren R. Kindler Damages	6	D. Del., E.D. Tex., W.D. Tex.
David Kennedy Damages	5	E.D. Tex., Fed. Cir.
DeForest McDuff Damages	4	D. Del., Fed. Cir.
Vijay Madisetti Technical	4	D. Del., E.D. Tex., Fed. Cir.
Christopher Bakewell Damages	3	D. Del., E.D. Tex.
Julie Davis Damages	3	D. Del., Fed. Cir.
Justin R. Blok Damages	3	E.D. Tex., Fed. Cir.
Alan Ratliff Damages	2	E.D. Tex., W.D. Tex.
Anthony Acampora Technical	2	D. Del., M.D. Fla.
Daniel Anderson Technical	2	D. Del.
Douglas Kidder Damages	2	D. Del., Fed. Cir.
James Proctor Technical	2	E.D. Tex.
Jonathan D. Putnam Damages	2	E.D. Tex.
Julia Rowe Damages	2	D. Del., E.D. Tex.
Justin Lewis Damages	2	D. Del.
Keith R. Ugone Damages	2	E.D. Tex.
Kevin Jeffay Technical	2	D. Del., E.D. Tex.
Michael Milani Damages	2	Fed. Cir., N.D. Cal.
Michele Riley Damages	2	Fed. Cir., N.D. Cal.
Richard D. Wesel Technical	2	E.D. Tex.
Robert Prud'homme Technical	2	D. Del.
Stephen L. Becker Damages	2	E.D. Tex.
Sumanth Addanki Damages	2	D. Del., Fed. Cir.
Todor Cooklev Technical	2	E.D. Tex.
Walter Bratic Damages	2	W.D. Tex.
Ambreen Salters Damages	1	E.D. Tex.
Andreas Groehn Survey	1	E.D. Tex.
Andrew Wolfe Technical	1	E.D. Tex.
Blake B. Inglish Damages	1	E.D. Tex.
Boyle C. Cheng Technical	1	D. Del.
Brad Carlson Damages	1	Fed. Cir.
Bruce McNair Technical	1	E.D. Tex.
Bryan Van Uden Damages	1	Fed. Cir.
Carl D. Meinhart Technical	1	D. Del.
Carla Mulhern Damages	1	D. Del.
Carrie L. Distler Damages	1	D. Del.
Catharine Lawton Damages	1	D. Del.
Catherine Lawton Damages	1	Fed. Cir.
Christopher Martinez Damages	1	N.D. Cal.
Christopher Vellturo Damages	1	D. Del.
Coleman Bazelon Damages	1	E.D. Tex.
Craig Arnold Technical	1	E.D. Tex.
Daniel Van der Weide Technical	1	E.D. Tex.
David A. Haas Damages	1	D. Del.
David Cowen Technical	1	D. Del.
David Neal Survey	1	Fed. Cir.
David Yurkerwich Damages	1	Fed. Cir.
Dr. Almeroth Technical	1	E.D. Tex.
Dr. Bivona Technical	1	D. Del.
Dr. Brogioli Technical	1	E.D. Tex.
Dr. Conte Technical	1	E.D. Tex.
Dr. Eldering Technical	1	D. Del.
Dr. Heeb Damages	1	Fed. Cir.
Dr. Jänne Technical	1	D. Del.
Dr. Maness Damages	1	D. Del.
Dr. Mangum Damages	1	D. Del.
Edwin Hernandez Damages	1	E.D. Tex.
Emmett Witchel Technical	1	E.D. Tex.
Eric Koskinen Technical	1	Fed. Cir.
Gary Lomp Technical	1	E.D. Tex.
George A. Zimmerman Technical	1	E.D. Tex.
George Edwards Technical	1	N.D. Cal.
Gordon Rausser Damages	1	D. Del.
Gregory Gonsalves Technical	1	N.D. Cal.
Gu-Yeon Wei Technical	1	D. Del.
J. Gary Eden Technical	1	D. Del.
James Benya Technical	1	D. Del.
James Bress Technical	1	E.D. Tex.
James J. Donohue Damages	1	D. Del.
James Shealy Technical	1	D. Del.
Jessica Houston Technical	1	D. Del.
Joanne Johnson Damages	1	D. Del.
John Black Technical	1	E.D. Tex.
John Collins Technical	1	Fed. Cir.
John Villasenor Technical	1	E.D. Tex.
Joseph D. Puglisi Technical	1	N.D. Cal.
Joseph McAlexander Technical	1	Fed. Cir.
Kevin McElroy Damages	1	D. Del.
Kimberly J. Schenk Damages	1	Fed. Cir.
Kirk Garratt Technical	1	D. Del.
Lance Gunderson Damages	1	E.D. Tex.
Larry J. Dumont Technical	1	W.D. Tex.
Laura B. Stamm Damages	1	E.D. Tex.
Leonard J. Cimini, Jr. Technical	1	E.D. Tex.
Mark Lanning Technical	1	E.D. Tex.
Martin Burke Technical	1	Fed. Cir.
Matthew Farber Damages	1	E.D. Tex.
Melissa Bennis Damages	1	E.D. Tex.
Michael Arnold Technical	1	D. Del.
Michael C. Brogioli Technical	1	E.D. Tex.
Michael Krames Technical	1	D. Del.
Michael Lasinski Damages	1	D. Del.
Michael Mitzenmacher Technical	1	W.D. Tex.
Mohan Rao Damages	1	D. Del.
Mr. Calman Damages	1	E.D. Tex.
Mr. Friedman Technical	1	Fed. Cir.
Mr. Malackowski Damages	1	Fed. Cir.
Ms. Kindler Damages	1	Fed. Cir.
Murat Eron Technical	1	E.D. Tex.
Naofal Al-Dhahir Technical	1	E.D. Tex.
Niel Ransom Technical	1	E.D. Tex.
Omid Kia Technical	1	Fed. Cir.
Patrick D. McDaniel Technical	1	N.D. Cal.
Paul Benoit Damages	1	W.D. Tex.
Paul Melin Licensing	1	E.D. Tex.
Paul T. Spellman Technical	1	W.D. Tex.
Philip Green Damages	1	W.D. Tex.
Philip Wilkinson Damages	1	D. Del.
Quinn Horn Technical	1	E.D. Tex.
Rahul Satija Technical	1	D. Del.
Raymond Bummer Damages	1	N.D. Cal.
Richard Lettiere Damages	1	D. Del.
Robert Heiblim Damages	1	D. Del.
Robert Karlicek Technical	1	D. Del.
Robert Mills Damages	1	E.D. Tex.
Ronald Epstein Licensing	1	N.D. Cal.
Russel Slifer Technical	1	N.D. Cal.
Ryan Sullivan Damages	1	Fed. Cir.
Sanjay Banerjee Technical	1	E.D. Tex.
Sarah Butler Survey	1	E.D. Tex.
Scott J. Savage Survey	1	N.D. Cal.
Scott Schaefer Technical	1	W.D. Tex.
Stephen Holzen Damages	1	N.D. Cal.
Stephen Wicker Technical	1	E.D. Tex.
Sukumaran Nair Technical	1	E.D. Tex.
Sumi Helal Technical	1	E.D. Tex.
Thomas M. Conte Technical	1	D. Del.
Umesh Banakar Technical	1	D. Del.
Walid Yassir Technical	1	Fed. Cir.
Walt Magnussen, Jr. Technical	1	E.D. Tex.
William B. Scally Damages	1	E.D. Tex.