Corporate Clients
Dr. Tal Lavian is a telecommunications expert witness and internet expert witness who provides technical consulting and litigation support to corporations and their counsel in complex patent disputes and intellectual property matters involving telecommunications, network communications, Internet protocols, and related technologies. He holds a Ph.D. in Computer Science from UC Berkeley, where he spent nearly 20 years researching, studying, and lecturing at UC Berkeley.
With over 35 years of industry and academic experience, Dr. Lavian has been retained by major technology companies—including Google, Apple, Microsoft, Amazon, Cisco, and Ericsson—in matters before U.S. Federal and District Courts, the International Trade Commission (ITC), and the USPTO Patent Trial and Appeal Board (PTAB). As the inventor of over 120 patents, he brings firsthand understanding of patent prosecution, claim construction, and the technical complexities underlying IP disputes.
Technical Expertise
Dr. Lavian’s areas of expertise include telecommunications systems, computer networks, VoIP, mobile wireless, network security, streaming media, Internet protocols, and software architecture.
Industry Experience
Dr. Lavian spent over 10 years at Nortel Networks’ Research Labs and has served as a DARPA Principal Investigator. His career spans research, product development, and engineering roles across telecommunications, networking, and Internet technologies. He is a senior member of IEEE.
Litigation Support
Dr. Lavian has been retained as an expert in over 90 cases, delivered over 60 depositions, and served as an expert on over 100 patents litigated. He has supported both plaintiff and defense engagements in patent infringement, trade secret, and other IP disputes. His case history includes work with litigation firms nationwide.
Companies That Have Retained Dr. Lavian
FAQ — Corporate Expert Witness Services
What types of patent cases does Dr. Lavian handle for corporate clients?
Dr. Lavian handles patent infringement cases, ITC Section 337 investigations, and USPTO PTAB proceedings — including IPR, PGR, and CBM reviews — involving telecommunications, network communications, VoIP, mobile wireless, Internet protocols, network security, streaming media, and computer networking technologies.
Has Dr. Lavian served as both plaintiff and defense expert?
Yes. Dr. Lavian has been retained by both plaintiff and defendant parties in patent cases, providing independent technical analysis based on his expertise and review of the relevant prior art, claim constructions, and accused product specifications.
What courts and tribunals has Dr. Lavian testified in for corporate clients?
Dr. Lavian has testified in U.S. federal district courts including the District of Delaware, the Central District of California, the Northern District of California, the Eastern District of Texas, and the Western District of Texas; the USPTO Patent Trial and Appeal Board (PTAB) in IPR, PGR, and CBM proceedings; the International Trade Commission (ITC); the Canadian Federal Court; and a court in Malaysia.
How does Dr. Lavian's inventor background benefit corporate clients?
As the inventor of over 120 patents, Dr. Lavian brings firsthand knowledge of the patent prosecution process, claim drafting, and USPTO examiner interactions. He has personally prosecuted over 60 patents pro-se before the USPTO. This inventor perspective provides corporate clients with uniquely grounded claim construction analysis and invalidity opinions in telecommunications patent litigation.


