Tal Lavian, Ph.D.

Encino, California

General Specialty

Internet Protocols
Mobile Wireless
Network Communications

Specialty Focus

Computer communications
Computer Networks
Data Communications
Instant Messaging Media Streaming
Mobile Wireless
Network Communications
Network Security
TCP/IP Internet Protocols
Voice Over IP (VoIP)
Wireless Communications

Dr. Lavian is an expert in telecommunications, network communications, and internet technologies, with over 35 years of experience in the industry. He holds a Ph.D. in computer science from the University of California, Berkeley, where he specialized in networking and communications.

Tal Lavian is a telecommunications expert specializing in data communications, computer networks, and internet protocols (TCP/IP). With over 35 years of experience as a scientist, educator, and technologist, Dr. Lavian offers expert consulting services in telecommunications, network communications, computer communications, and internet protocols. His expertise includes computer networks, data communications, LAN/WAN, TCP/IP, UDP, VPN, voice over IP (VoIP), streaming media, chat, SMS, network security, mobile wireless, Ethernet, routing, switching, the internet, web technologies, and communication standards.

Dr. Lavian has spent 20 years researching, studying, and lecturing at UC Berkeley’s College of Engineering. 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.

While at UC Berkeley, Dr. Lavian conducted research projects in data centers (RAD Labs), network communication service architecture (SAHARA), and wireless systems (ICEBERG). He also served as an industry fellow and lecturer at the Sutardja Center for Entrepreneurship and Technology (SCET) and as a scientific liaison between Nortel Research Lab and UC Berkeley. Dr. Lavian was also part of UC Berkeley’s SkyDeck start-ups, where he worked on technology research and implementation.

Dr. Lavian has co-authored over 25 scientific publications, journal articles, and peer-reviewed papers and has presented his work at conferences. He is also the inventor of over 120 issued and filed patents.

Dr. Lavian has extensive experience working with law firms as an expert witness in patent-related cases. He has been retained by several prominent firms, including Fish Richardson, Cooley, Oblon, Irell & Manella, McKool Smith, Keker Van Nest, Finnegan, Holland & Knight, Perkins Coie, Kirkland & Ellis, Desmarais, Morgan Lewis, Kenyon & Kenyon, Durie Tangri, Greenberg Traurig, Ropes & Gray, McGuireWoods, Paper Hamilton, Skadden, Winston & Strawn, Gibson Dunn, Simpson Thacher, and Foley & Lardner.

Dr. Lavian has testified in various courts, including the United States District Court, the USPTO, the ITC, and other courts in the United States and Canada. He has also provided expert testimony in USPTO PTAB proceedings, including IPRs, CBM reviews, PGRs, Ex-Parte Re-Examinations, and PTO Interferences. His technical knowledge and expertise make him a valuable resource for these law firms in patent litigation proceedings.As a highly sought-after expert witness, Dr. Lavian has testified in numerous patent-related cases, including in Federal courts, the USPTO PTAB, and the ITC. He has supported leading companies such as Amazon, T-Mobile, LinkedIn, Avaya, AT&T, Ericsson, Sprint, Cisco Systems, Juniper Networks, Arista Networks, Polycom, Motorola, LG, WhatsApp, Instagram, Microsoft, Google, Huawei, Facebook, and Apple in litigation cases involving over 140 patents.

Dr. Lavian is skilled at translating complex technical concepts into plain-English commonsense, making him a valuable resource for legal professionals and laypeople alike. His expertise in network communications, telecommunications, and internet technologies is unparalleled, and his contributions

Expert in: Network communications, telecommunications, Internet protocols, and mobile wireless:

  • Communication networks: Internet protocols; TCP/IP suite, TCP, UDP, IP, Ethernet, 802.3, network protocols, network software applications, data link, network, and transport layers (L2, L3, L4), SNMP, network management, packet switching, network architecture
  • Mobile wireless: Wi-Fi, 802.11, Bluetooth, Wireless LAN (WLAN), MAC, PHY, Cellular systems, SMS, instant messaging (chat), mobile devices, smartphone
  • Internet/cloud: Internet Technologies, Web applications, HTTP, e-mail, SMTP, POP, IMAP, FTP, client-server, cloud computing, distributed computing
  • Routing/switching: LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, queuing, network infrastructure, and architectures
  • VoIP/Streaming Media: VoIP, SIP, RTP, video/audio conferencing, streaming media, IP telephony, PSTN, circuit switching, WebRTC, SS7 https://telecommnet.com


  • Ph.D., Computer Science
  • Electrical Engineering, Tel Aviv University
  • B.Sc, Computer Science, Tel Aviv University


Additional Information: 

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