Law Firm Clients
Dr. Tal Lavian is a telecommunications expert witness and internet expert witness who provides testimony and technical consulting to law firms handling complex patent litigation and intellectual property disputes involving telecommunications, network communications, Internet protocols, and related technologies. Dr. Lavian has spent nearly 20 years researching, studying, and lecturing at UC Berkeley. His research focuses on telecommunications systems, data networks, network services, software, network protocols, and communications frameworks. He holds a Ph.D. in Computer Science from UC Berkeley, specializing in network communications.
With over 35 years of industry and academic experience, Dr. Lavian has provided expert witness services in over 90 cases before U.S. Federal and District Courts, the International Trade Commission (ITC), and the USPTO Patent Trial and Appeal Board (PTAB)—including IPRs, CBM reviews, PGRs, Ex-Parte Re-Examinations, and PTO Interferences. He has delivered over 60 depositions and has served as an expert on over 100 patents litigated. He has also provided testimony in international proceedings in Canada and Asia.
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. As an inventor on over 120 patents, he brings firsthand understanding of patent prosecution and claim construction.
Litigation Experience
Dr. Lavian has been retained in matters involving companies such as Apple, Google, Cisco, Microsoft, Amazon, Facebook, Ericsson, and T-Mobile, among others. His case history encompasses both plaintiff and defense engagements in patent infringement, trade secret, and other intellectual property disputes.
Forums & Proceedings
Dr. Lavian has testified in U.S. Federal and District Courts, the ITC, and the USPTO PTAB. His experience covers claim construction and Markman hearings, jury and bench trials, depositions, and various post-grant proceedings. He has also provided expert opinions in international proceedings in Canada and Asia.
Firms That Have Retained Dr. Lavian
Retaining Dr. Lavian as Expert Witness
The typical engagement process is:
Reach out via [email protected] with a brief description of the technology area and case type. A response is typically provided within one business day.
Dr. Lavian reviews the parties involved for conflicts before agreeing to serve. He can be retained by either plaintiff or defendant.
The scope of analysis — claim construction, infringement, validity, or technical consulting — is discussed, along with a fee structure appropriate to the engagement.
Dr. Lavian provides expert reports, declarations, rebuttal reports, and deposition and trial testimony as needed. All work product reflects his own independent technical analysis.