Computers Expert Witnesses

Computers expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on computers. The computers expert witness listings on this page are typically from fields/areas of expertise such as: Computers, Electrical Engineering, Information Technology, Intellectual Property, Internet, and Software Engineering.

Joseph Greenfield, PhD Maryman & Associates

Los Angeles, California
Computers, Information Technology - Digital Forensics, Computer Forensics, Electronic Evidence, Electronic Discovery, eDiscovery, Email Analysis, Mobile, Computers, Cybersecurity, Cyber Breach Investigations, Cyber Investigations, Incident Response, DFIR
Dr. Joseph Greenfield is the Vice President and Chief Forensic Examiner at Maryman & Associates and an award-winning educator. He is a renowned computer forensics expert with over 15 years of investigative experience, including cyber breach investigations, employee misconduct, and email recovery and analysis. He has worked over 1000 cases and analyzed over 2000 pieces of digital evidence. His is known for deep forensic analysis while being able to explain technical details to non-technical decision-makers. He has provided expert witness testimony in state, federal, and international legal matters. Dr. Greenfield is also an Associate Professor of Information Technology Practice at the Viterbi School of Engineering at the University of Southern California, where he authored the undergraduate programs in both cybersecurity and digital forensics. In 2014, the Ponemon Institute ranked USC as 6th in the nation for “Best Schools for Cybersecurity” and the highest ranked on the West Coas...

Arthur M. Keller, PhD Minerva Consulting

Palo Alto, California
Intellectual Property, Internet - Computers, Information Technology, Databases, Electronic Commerce, Software, Distributed Systems, Plaintiff, Defense.
Researcher and Lecturer, University of California, Santa Cruz, Senior Research Scientist, Stanford University, Assistant Professor, The University of Texas at Austin, Lecturer and Systems Programmer, Brooklyn College. Chief Technical Advisor and Board Member, Persistence Software (went public in 1999), Founder, COO, and CFO, Mergent Systems (acquired by CommerceOne in 2000).

Jim C. Williams Media Strategies and Solutions, LLC

Yorba Linda, California
Electrical Engineering, Intellectual Property - Video, Media, Entertainment, Telecommunications, Internet Streaming, Anti-Piracy, Security, Video Compression, Cryptography, Digital Rights Management, Computers, Movies, Television, Consumer Electronics, Broadcasting
Jim is President & Founder of Media Strategies and Solutions, LLC, a consultancy focused on bridging the divide between technology providers and major media producers thereby lowering business, legal, and technical risk for its clients. Clients include companies involved in the media and entertainment value chain. 2010-present. Jim is the former SVP & CTO of the Motion Picture Association of America, Inc. (MPAA), where he worked closely with Warner Bros., Disney, 20th Century Fox, Universal Pictures, Paramount, and Sony Pictures to advance movie and television producer’s interests throughout the world. 2002-2010. Jim is a former executive with DIRECTV leading the startup of DIRECTV Japan, the launch of the first U.S. nationwide HDTV service, and the development of DIRECTV’s set-top box (STB) platform. Jim advanced from a skilled hardware, software, and chip designer at DIRECTV’s parent, Hughes Electronics, to a seasoned entertainment executive responsible for up to 300 employee...

Harry G. Direen, PhD, PE Direen Tech Inc.

Colorado Springs, Colorado
Electrical Engineering, Software Engineering - Electronics, Control Systems, Embedded Systems, Robotics, Signal Processing, Drones, UAV, Software, Patents, Intellectual Property, Databases, Computers
Dr. Direen has over 35 years of experience as an engineer designing and developing systems in the electronics and software industry. He has significant experience as an expert witness supporting counsel and testifying in complex patent infringement cases. His expertise includes electronic systems, control systems; embedded systems design and development; databases; control of UAVs/Drones; product reverse engineering; and intellectual property. Dr. Direen has a broad base of knowledge in electronic and software systems gained from a long career developing a wide range of products and systems. Dr. Direen has reversed engineered a variety of complex systems over the years, including: media players, modems, modem compression algorithms, coriolis mass flow meters, database systems, and a range of other products to support patent infringement cases generating detailed claim charts and writing expert reports to demonstrate infringement. He has successfully discovered and analyze...