Cloud Computing / Services Expert Witnesses: 5

Baw Chng is a highly experienced Networking, Communications, Computer, and Software expert. He is an inventor with 11 patents in communication and networking technology. He is also a published author, public speaker, and USPTO Registered Patent Agent.

Experience: 24+ years of professional experience in telecom and networking. Consulted for Tier-1 national communication service providers and their strategic technology vendors. Experienced in engineering R&D, standards development, and patent assessment. Baw Chng has published papers, given public talks/presentations, provided expert consulting, written expert reports, provided deposition & testimonies as an expertness.

Ideal Client - Litigators who work on cases that involve complex technical issues, patent and intellectual property related issues, business contract cases that involve sophisticated technology.

Areas of Expertise

Technical Skills and Knowledge include:

• 3GPP and 3GPP2 families of cellular mobile broadband radio access and core network standards, small cells, femtocell, inter-technology handover and roaming
• IEEE 802.11 (Wi-Fi, mesh, infrastructure), 802.3 (Ethernet), 802.15 (WiMAX), 802.16 (WPAN) families of standards
• Network architecture, telecom system architecture
• Internet standards and protocols, TCP/IP, UDP, RTP, DHCP, DNS, ARP, GRE, etc.
• Internet-of-Things (IoT), M2M, LoRa, LoRaWAN, LTE Cat-M, NB-IoT
• Hotspot 2.0 / Passpoint (for Wi-Fi)
• IPsec, IKEv2, L2/L3 tunneling, NAT/NAPT (firewall)
• SAML, SAMLv2 federation; oAuth, oAuth 2.0 authentication; RADIUS, DIAMETER
• Network & device management, Broadband Forum TR-69 and IETF SNMP standards
• Software Defined Networking (SDN), Network Function Virtualization (NFV)
• Self-Organizing Network and Self-Optimizing Network (SON)
• Web Services, REST/JSON API design & implementation, HTTP
• Cloud computing, Amazon Web Services (AWS)
• Big Data, Avro, Parquet
• Plastic Optical Fiber (POF), Optical Networking
• Software architecture, Object-oriented design and programming, design patterns
• Go Lang, C, C++, Perl, LabVIEW, BASIC, Pascal, Unix shell scripting languages
• HTML, CSS, web design & development, web hosting, JavaScript, CGI Programming
• Operating systems (RTOS, various Unix/Linux variants, iOS, Android, etc.)
• Quality of Service (QoS), Fair Scheduling, Fair Queueing
• Interconnection networks and switching fabrics for parallel computers, network switches, and routers

Master's degree in Computer Science (MSCS), Bachelor's degrees in Electrical Engineering and Computer Engineering (BSEE, BSCoE), Washington University in St. Louis.

View BAWMAN LLC's Consulting Profile.

Ian Cullimore, PhD, has over 30 years of hands-on Software and Hardware Development experience. He specializes in handheld devices, palmtops, PDAs, low power embedded systems, and Internet server technologies.

Background - Dr. Cullimore has held many employment and consulting posts as a software/hardware developer and inventor. He invented the world's first pocket PC which he licensed to Atari as the 'Portfolio'. He is also the co-inventor of the 'Poqet PC', acquired by Fujitsu. Dr. Cullimore is an experienced hi-tech CEO/CTO, yet still very hands-on with respect to architecture and coding. He has many years of experience both in the UK and California (Silicon Valley and LA) in companies ranging from small startups to large corporations, and in building and managing software and hardware teams.

An entrepreneur and start-up and young company specialist, Dr. Cullimore has helped to raise Angel and VC rounds, and has taken startups to exit. He has much experience interfacing with Boards, Investors, and sales/marketing/bizdev groups.

Litigation Support - Dr. Cullimore has a long track record as a Patent and Software / Hardware Expert Witness. His experience includes 30 cases, 19 written Expert Reports, 10 Depositions, and 3 at trial. His services are available to attorneys for both plaintiff and defendant.

Areas of Expertise:

Philip J. Isaak, PE, P.Eng., DCDC, RCDD, SMIEEE, is an expert witness, consultant & trainer in the design, construction, procurement, implementation, commissioning & operations of Information Technology, Telecommunications & Critical Data Center Facilities. 

Mr. Isaak provides clear analysis for complex disputes, incorporating industry standards, best-practices and over 20 years of consulting & training expertise working with clients located in 28 countries and territories across 6 continents. 

In recognition of Mr. Isaak’s professional standing, the Institute of Electrical & Electronic Engineers (IEEE), the world’s largest professional association for advancement of technology, certified him to the grade of Senior Member, a level only 9% of IEEE’s over 400,000 global members hold. Mr. Isaak is also an author of several industry standards published by TIA & ANSI/BICSI, whitepapers published by The Green Grid, and the Data Center Handbook published by John Wiley & Sons.

Expert Witness Services

Areas of Expertise:

View Philip Isaak's Consulting Profile.

Dr. Joseph Greenfield is the Vice President and Chief Forensic Examiner with Maryman & Associates. 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. 

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 both the undergraduate cybersecurity and digital forensics programs. In 2014, the Ponemon Institute ranked USC as 6th in the nation for “Best Schools for Cybersecurity” and the highest ranked on the West Coast. In 2019, he co-created an interdisciplinary bachelor's degree in Intelligence and Cyber Operations, now a part of the USC Political Science and International Relations Department in the Dornsife College of Letters, Arts and Sciences.

Litigation Support - Dr. Greenfield has over 15 years of experience in digital forensics. He has testified for both plaintiff and defense in civil matters in state, federal, and international courts. He has examined over 2,000 pieces of digital evidence and worked on over 1,000 cases. He has also provided expert testimony in criminal matters.

Areas of Expertise:

 Dr. Greenfield completed his Ph. D. in Computer Science at the University of Rhode Island, where his research focused on parallel processing of all live files while creating a forensic bitstream image.

Dr. Tal Lavian holds a Ph.D. from the University of California, Berkeley, in Computer Science, specializing in Networking and Communications. He is an expert in network communications, telecommunications, Internet Protocols (TCP/IP), LAN/WAN, Streaming media, VoIP, mobile wireless, and Internet/Web technologies. He has over 30 years of experience, has invented over 120 patents, and has co-authored over 25 scientific publications. For 20 years, Dr. Lavian has researched, studied, and lectured at UC Berkeley Engineering. He has served as an industry fellow and lecturer with UC Berkeley’s Industrial Engineering IEOR, Berkeley Engineering’s SCET, UC Berkeley’s start-up accelerator, and SkyDeck, as principal investigator for CRadar.Ai and CTO for Aybell.

Areas of Expertise:

Network Communications - Telecommunications - Internet Protocols (TCP/IP) - VoIP - Streaming Media - 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), packet switching, data center network architecture.
• Mobile Wireless: Wi-Fi, 802.11, Bluetooth, MAC, PHY, Wireless LAN (WLAN). Cellular systems, SMS, instant messaging (chat), mobile devices, and smartphones.
• Internet/Cloud: Internet Technologies, Web applications, HTTP, e-mail, SMTP, POP, IMAP, Java, C/C++, file transfer FTP, client-server, cloud computing, distributed computing.
• Routing/Switching: LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, network infrastructure, and network communication architectures.
• VoIP/Streaming Media: PSTN, voice, data, circuit switching, IP telephony, VoIP, SIP, RTP, video/audio conferencing, streaming media.

Dr. Lavian brings both hands-on and academic experience to his work in Network communications, Internet Protocols, design, and architecture. 

Litigation Support:

Dr. Lavian offers expert witness services and provides courtroom presence, clear testimony, and an ability to effectively distill complex concepts into understandable basics and commonsense.

• He has extensive experience rendering reports and testifying in Federal, IPR, and ITC cases in over 140 patent-related cases.
• Past cases have involved leading companies such as Google, Microsoft, Amazon, LinkedIn, Avaya, T-Mobile, AT&T, Ericsson, Sprint, Cisco Systems, Juniper Networks, Polycom, Motorola, LG, WhatsApp, Instagram, ZTE, Huawei, Facebook, and Apple.

View Dr. Lavian's Consulting Profile.