Prof. Nabil J. Sarhan's Expert Witness Experience

Patent Infringement, Patent Validity, Inter Partes Review (IPR), and Other Intellectual Property and Corporate Litigation

Dr. Sarhan has served as an Expert Witness in numerous patent infringement, validity, invalidity, and Inter Partes Review (IPR) cases related to computer systems, video streaming, multimedia systems, video coding, video transcoding, adaptive bitrate, video sharing, video security systems, video recording, data communication, low voltage differential signaling, and I/O interconnects. He also served as a Consulting Expert in other intellectual property and corporate litigation cases related to secure multimedia products for medical applications, encryption, anonymity, and IP addresses.

Dr. Sarhan's expertise includes technical patent infringement analysis (literal and under the doctrine of equivalents), patent validity/invalidity (including obviousness, written description, enablement, and reissue patent enlargement), priority date analysis, claim construction, technical comparability of patents, technical comparability of licensing agreements, and source code review.

Summary of completed work: 2 Trials, 4 Depositions, 8 Expert Reports, and 8 Declarations.

Major Cases:

Cases with Testifying at Trial:

Expert Witness and Consulting Expert, patent infringement and validity cases, ACQIS v. ASUSTeK and ASUS Global, United States District Court for the Western District of Texas, on the plaintiff's side, technical areas of litigation: computer systems with Low Voltage Differential Signaling (LVDS), serial interfacing, and I/O interconnects, including PCI Express, USB 3.x, USB 4.0, Thunderbolt, SATA, SAS, and DisplayPort, January 2022 – March 2024. The plaintiff won $17.9M.

Expert Witness and Consulting Expert, patent infringement case VideoShare v. Google (for the YouTube service), United States District Court for the Western District of Texas, on the plaintiff's side, technical areas of the litigation: video streaming, video transcoding, video uploading, and advertisements, July 2020 - November 2021. The plaintiff won $25.9M. The federal judge stated that I was one of the two primary reasons the plaintiff prevailed in the case.

Ongoing Cases:

Expert, Inter Partes Review (IPR) cases for Motorola Solutions and Watchguard Video (petitioners), Inc. patent infringement case, areas of the patents: video security/surveillance systems, January 19, 2024 – Now.
Expert Witness, patent infringement case, ACQIS v. Sony, on the plaintiff's side, areas of the patents: computer systems with LVDS channels, serial interfacing, graphics, PCI transactions, USB, etc., April 2023 – Now.

Settled Cases and Others:

Expert Witness and Consulting Expert, patent infringement case, ACQIS v. Microsoft, on the plaintiff's side, areas of the patents: computer systems with LVDS channels, serial interfacing, graphics, PCI transactions, USB, etc., April 2023 – June 2023. The case was settled.

Expert Witness and Consulting Expert, patent infringement case, ACQIS v. Wiwynn, on the plaintiff's side, areas of the patents: computer systems with LVDS channels, serial interfacing, graphics, PCI transactions, USB, etc., January 2022 – May 2023. The case was settled after my expert report was submitted.

Expert Witness and Consulting Expert, patent infringement and validity cases, ACQIS v. Lenovo, on the plaintiff's side, areas of the patents: computer systems with LVDS channels, serial interfacing, graphics, PCI transactions, USB, etc., January 2022 – November 2022. The case was settled after my expert report was submitted.

Expert Witness and Consulting Expert, patent infringement case VideoShare v. Meta (Facebook), on the plaintiff's side, patent: "Systems and Methods for Sharing Video with Advertisements over a Network", November 2021 – March 2023.

Major Source Code Review

Review of Facebook and Instagram source code in patent infringement case VideoShare v. Meta (Facebook), March and April 2022.

Review of YouTube source code in patent infringement case VideoShare v. Google, February 2021.

Consulting Expert Experience in Patent Infringement and Other Corporate Litigation Cases

Consulting Expert, a patent infringement case on video sharing and streaming systems, February 2020 - October 2020.

Consulting Expert, a patent infringement case on video streaming and multimedia systems: Visual Interactive Phone Concepts (VIPC) v. US Cellular, 2014 - 2015.

Consulting Expert, a patent infringement case related to video streaming: Visual Interactive Phone Concepts (VIPC) v. Verizon, on the Plaintiff’s side, 2012 – 2014.

Consulting Expert, a patent infringement case related to video streaming: Visual Interactive Phone Concepts (VIPC) v. US Cellular, on the Plaintiff’s side, 2012 - 2014.

Consulting Expert, a patent infringement case related to video streaming: Visual Interactive Phone Concepts (VIPC) v. Google, on the Plaintiff’s side, 2012 - 2014.

Consulting Expert, a patent infringement case related to video streaming: Visual Interactive Phone Concepts (VIPC) v. Samsung, on the Plaintiff’s side, 2012 - 2014.

Consulting Expert, an intellectual property corporate litigation case involving secure multimedia products for medical applications: MIANTS, LLC, a Michigan limited liability company, MATTHEW VISCONTI, M.D., an individual, SANDY VISCONTI, an individual, APG, LTD, a Canadian corporation, FELICE IAFRATE, ESQ, an individual, LARRY DAVIDSON, an individual, and CRYSTAL DAVIDSON, an individual, directly and derivatively on behalf of BRIGHT PURPLE ENCRYPTION, LLC, a Michigan limited liability company, and ENCRYPTION SECURITY SOLUTIONS, LLC, a Michigan limited liability company v. KEVIN LASSER, an individual, RAMIE PHILLIPS III, an individual, MEDTEDCO, LLC, a Michigan limited liability company, PHILLIPS CONSULTING, INC., a Michigan corporation, JEMS TECHNOLOGY, LLC, a Michigan limited liability company, DAVID UNDERDALE, an individual, TIMOTHY FOLEY, M.D., an individual, TRUDY HABLE, an individual, and ROBERT HUTH, an individual, on the plaintiff’s side, 2014.

Consulting Expert, a corporate litigation case involving IP addresses and anonymous e-mails: Integrated Health Group v. Integrated Healthcare Systems, on the Plaintiff’s side, 2014.

Areas of Technical Experience:

Video streaming, all aspects, including

Mobile video
Adaptive Bitrate (ABR)
Dynamic Adaptive Streaming over HTTP (DASH)
HTTP Live Streaming (HLS)
Online video apps

Multimedia systems, all aspects, including

Content Delivery Networks (CDNs)
Video analysis
Video storage
Video delivery
Video encoding
Video transcoding
Content ingestion
Social media

Computer systems

Multimedia systems
Distributed systems
Cloud computing

Computer networks

Data communication
Video communication
Network security
Network protocols
TCP/IP Stack
Scalable Internet services and architectures
Cross-layer optimization

Video security systems, including

Automated video surveillance
Video security systems
Video cameras
Threat detection

Deep learning, including

Convolutional Neural Networks (CNNs)
Hardware accelerators for artificial intelligence (AI)

I/O and Interconnects, including

Storage systems
I/O Controllers
Interconnects
PCI Express
SATA
USB
Other protocols such as HDMI, MIPI DSI, DisplayPort, Thunderbolt, USB4, SAS
High speed serial communication,
Low Voltage Differential Signaling (LVDS)

Technical Experience:

Dr. Sarhan is an internationally recognized expert in computer systems, video streaming, multimedia systems, data communication, online video, computer vision systems, computer networking, and automated video surveillance, with over 20 years of experience in the field. Four of his research projects were sponsored by the National Science Foundation, one by Silicon Mechanics, and one by Sun Microsystems.

Dr. Sarhan served as the Chair of the Interest Group on Media Streaming of the IEEE Multimedia Communication Technical Committee and the Co-Director of the IEEE Multimedia Communication Technical Committee Review Board . He also served as an Associate Editor of the IEEE Transactions on Circuits and Systems for Video Technology . He has been involved in the organization of numerous international conferences in various capacities, including chair, co-chair, publicity chair, track chair, and technical program committee number. For example, he served as Co-Chair of the Technical Program Committee of ACM SIGMM Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV) in 2018.

Dr. Sarhan authored over 50 peer-reviewed or invited journal, magazine, and conference papers on numerous topics, including video streaming, multimedia systems, automated video surveillance, computer system design, computer networks, and deep learning, with publications in top venues. He was also the editor or co-editor of a conference proceeding, a special issue in the Multimedia Tools and Applications Journal, a special issue in the IEEE MMTC E-letter, and multiple IEEE MMTC R-Letters. He published a book chapter: “Streaming Multimedia”, The Handbook of Computer Networks, John Wiley & Sons, Inc., November 2007. He is the named inventor on U.S. Patent No. 9,313,463 related to the design of automated video surveillance systems.

Dr. Sarhan regularly teaches courses on computer architecture, computer networking, and secure and scalable Internet services and architectures. He also taught three advanced courses on multimedia systems and networking as well as courses on data structures and algorithms, C++ programming, microcomputer systems, and algorithmic processes.

Dr. Sarhan supervised eight Ph.D. dissertations and four master theses and is currently supervising three Ph.D. students.

Dr. Sarhan is the recipient of the IEEE SEM Outstanding Professional of the Year Award , the Wayne State University President's Award for Excellence in Teaching , and the College of Engineering Excellence in Teaching Award. He was inducted into the WSU Academy of Teachers in 2022. Dr. Sarhan is a Senior Member of the IEEE.

News:

Optimized Computer-Automated Video Surveillance System Increases Consumer Safety

College of Engineering Dr. Nabil J. Sarhan