Operating Systems Expert Witnesses

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Operating Systems Expert Witness - Representative Bios

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The below expert witness bios represent a small fraction of those Operating Systems experts known by Cahn Litigation Services. These bios are provided to give lawyers a sense of the Operating Systems landscape.

• Expert Witness #222841

  This expert brings to the table many years of experience and leads a highly successful consultancy providing clients with computer and network design services including formulation of system requirements, systems architecture through software development and product rollout. This expert also provides litigation support and expert testimony with experience in patent and trade secret cases.

  This expert specializes in the specification, design and development of computer systems for communications. This expert's experience has focused on three primary disciplines; operating systems, wireless and wired networking, and telecommunications. This expert has worked with virtualized operating systems, particularly Linux based QEMU and VirtualBox. This includes software package installation and initialization of virtual images, hardware virtualization and related technologies. This expert has worked on the design of several set-top boxes and network routers, and is familiar with network protocols, cellular networking and other technologies. This expert has worked on the design and modification of numerous operating systems and has also worked on software for various network protocols. This expert is a named inventor or co-inventor on several patents.

  This expert has been an active contributor to standards and industry organizations including the Wi-Fi Alliance supporting 802.11 wireless networking, the DSL Forum, and DAVIC for multimedia distribution.  This expert is Life Senior Member of IEEE, and a senior member of the Professional and Technical Consultants Association (PATCA).

  This expert's litigation experience includes trial and deposition testimony, expert reports, as well as infringement and invalidity analysis, prior art searches, source code reviews, lab testing, and patent portfolio review.  

  
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• Expert Witness #125102

  
  This expert holds a PhD in Computer Engineering and is an Adjunct Professor of Electrical and Computer Engineering. This expert instructs graduate level seminars on embedded computer architectures, and their relation to compiled languages, and embedded software systems. This expert is also an avid technologist, entrepreneur, founder of a highly successful technology consultancy and managing director at a private equity angel investing firm. This expert is involved in IEEE / ACM Design Automation Conference’s Embedded Software and Systems Track and the IEEE Real Time Systems Symposium.  Previously, this expert held industry roles with major US semiconductor companies in the areas of computer architecture, high performance software, and related systems; formerly, chief architect of hardware and software systems for Fortune 500 semiconductor companies.

  This expert is the architect of open source computer architecture simulation environments used for hardware/software system design at various US universities. This expert is also the named inventor on multiple US patents, including client/server computing and embedded operating systems.

  This expert has extensive experience with testimony (validity/infringement and related), depositions, expert report generation and investigation of computer video hardware and video software systems such as computer operating systems and systems software. Additionally, this expert has extensive experience in reverse engineering and source code review of multi millions of lines of software and hardware source code.

  
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• Expert Witness #230902

  This expert has many years of experience in hardware and software engineering from embedded systems in the telecommunications and robotics fields to very large-scale enterprise systems. This expert has developed embedded systems for media distribution, high speed encryption and robots; enterprise systems; AI technologies; computer language compilers and interpreters; operating systems; network protocols and knowledge discovery tools; and web and non-web Internet based systems. This expert has extensive experience with more than 45 computer languages and relational, object and post-relational database systems. This expert has developed custom loaders for object code and understands the general requirements of a bifurcated OS or API where executable code for certain concerns are stored in separate and interchangeable code and data elements. This expert has also developed table-based solutions for localizing executables.

  Selected Professional Experience

  Senior Systems Engineer – Lead engineer of a team responsible for porting MS-DOS and Microsoft Windows to Paradyne PCs. Developed drivers and BIOS. Senior engineer on team responsible for porting and customizing the first implementation of Microsoft Xenix, which later became SCO Unix. Consulted to team responsible for localizing Paradyne products for various foreign language markets.

  Department manager and lead engineer of Embedded Systems for a Robotics Group. Under this expert’s direction and following this expert’s design, the group developed a custom real-time operating system with extensions for executing a software-based replacement for Programmable Logic Controllers using a custom logic language compiler of this expert’s design, a distributed multi-node inter-process communication subsystem and other OS extensions.

  This expert has years of experience providing expert reports, depositions and testimony for patent litigation, forensics and software contract disputes in telecommunications, computer and network technologies, media distribution and media handling devices and cellular devices and networks including both hardware and software.

  This expert’s expert analysis and conclusions were instrumental in achieving successful results in several cases, including a petition before the PTAB for re-examination of a patent’s validity, wherein this expert’s expert written and oral opinions led to a reversal of the Board’s previous invalidity decision, resulting in the patent’s validity being sustained, as well as a similar reversal of a prior decision on a second patent the following day, using the same arguments.

  
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• Expert Witness #226525

  This distributed systems expert holds a Ph.D., M.Sc., and B.Sc in Computer Science and is a senior academic professor and endowed chair professor in engineering and storage systems research, with over 40 years of server architecture and distributed systems expertise.

  This expert taught operating systems and systems courses for over 35 years and led a leading data storage research group for over 25 years.

  This expert has experience as an expert witness and litigation consultant.

  
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• Expert Witness #243665

  This coding expert owns and operates an engineering consulting and training firm focused on software, firmware, and hardware domains, with expertise spanning assembly language, C, C++, claim charting, CodeSuite, concurrent version systems (CVS), device drivers, embedded software, embedded systems, computer and coding forensics, Linux, microprocessors and processors, Real-Time operating systems (RTOS), shell scripts, Software engineering, Software forensics, and Apache Subversion (SVN).

  This expert has significant witness experience involving infringement and alleged violations of patents, copyrights, trade secrets, and other intellectual property, as well as cases regarding defective products. This expert is typically asked to examine software source code and hardware designs, and to reverse-engineer designs.

  
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• Expert Witness #250542

  This LiDAR technology expert holds a PhD and has accumulated broad, in-depth knowledge and experience in the theory, system analysis, design, and build of optics, lasers, diode lasers, photodetectors, opto-mechanical systems, electrical systems, and electronics hardware associated with LiDAR systems operating at infrared to UV wavelengths.

  This expert also has substantial experience in atmospheric physics, algorithm development, signal processing, and analysis of LiDAR systems. This expert's experience includes designing and building receiver detectors, transceiver optics, associated electronics, and gas, solid-state, and diode laser transmitters.

  This expert has fabricated a range of photodetectors using III-V, II-VI, and silicon materials, is well-published, and has strong expert witness experience.

  
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• Expert Witness #252271

  This hydraulic fracturing expert holds a PE credential and has over 40 years of direct experience in hydraulic fracturing, unconventional completions, and high-TDS reservoir environments. This expert has designed and overseen multi-stage slickwater fracturing programs in fractured carbonates and shale systems where iron-related fluid incompatibility is a formation-damage issue. In these environments, the "gel-like goo" phenomenon typically results from iron interaction within the formation matrix, such as pyrite or marcasite, and/or in situ brine chemistry, rather than from surface blending or pumping hardware.

  This expert has worked in or studied numerous formations with potential for elevated TDS and/or iron-related compatibility concerns. This expert's background includes advanced statistical analysis of thousands of hydraulic fracturing treatments, evaluation of polymer and fluid systems, including HPG, CMG, CMHPG, slickwater systems, and foamed fluids, and prior patent litigation involving hydraulic fracturing fluid technologies and completion systems.

  This expert has authored many expert reports and declarations, has been deposed, and has testified in trial and PTAB proceedings in complex oilfield patent matters. With experience operating wells and analyzing frac performance at a technical level, this expert brings practical field knowledge together with patent claim construction experience.

  
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• Expert Witness #265317

  This sensor-based automation expert witness holds a Ph.D. in Mechanical Engineering and is a distinguished professor of mechanical engineering at a well-regarded university, with over 20 years of experience in vehicle dynamics, control, and sensor-based automation for ground vehicles. This expert holds endowed professorships and has led a nationally recognized research program in automated and intelligent transportation systems. The Ph.D. was earned from a prestigious university, with specialization in automatic control and mechatronic systems, and this expert has received multiple national awards recognizing contributions to vehicle automation research and engineering education.

  This expert has extensive expertise in the integration of camera-based sensing with GPS, inertial sensors, LiDAR, radar, and onboard vehicle sensors to support automated driving and advanced driver assistance systems. Research areas include vision-based lane detection, object tracking, and vision-aided navigation, with a strong emphasis on sensor fusion and real-time implementation on instrumented vehicles operating in challenging environments. This expert has supervised numerous graduate research projects involving computer vision for autonomous vehicles, including robust lane detection using camera and IMU data, vision-assisted GPS/INS navigation, and object registration and tracking for automated platforms. The work consistently combines theoretical development with experimental validation on full-scale vehicle systems.

  This expert is an experienced expert witness and litigation consultant.

  
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• Expert Witness #269884

  This mobile systems/base station expert holds a Ph.D. in wireless communication and location technologies and an MS in antennas and electromagnetics, and is a recognized world-class expert in mobile systems with over 30 years of expertise in wireless technologies spanning base stations, smartphones, and IoT devices using 5G/4G/3G/2G, WiFi, Bluetooth, Zigbee, and UWB. This expert focuses on wireless PHY and MAC layers between base stations and user equipment, including messaging protocols, standards, architectures, algorithms, and performance.

  As a practicing engineer, this expert has conducted extensive R&D on numerous wireless products, including hardware, chips, software/firmware, and services. This expert has actively contributed to major telecommunications standards bodies and served on a prominent federal communications advisory council focused on communications, security, reliability, and interoperability.

  Throughout this expert's career, work has included roles and consulting for leading wireless technology companies, as well as consultancy services assessing patent portfolios and acquisition targets for technology clients. Academic specialization includes wireless network performance and high-performance antenna systems in challenging operating environments. This expert is a prolific author and inventor, with numerous publications and patents in wireless technologies, particularly smart antennas and location systems.

  As an expert witness, this expert has participated in many cases, including complex international, multi-district, and PTAB IPR matters involving validity/invalidity and infringement/non-infringement, as well as FRAND licensing and criminal trade secret matters.

  
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• Expert Witness #274360

  This data forensics expert has technical aptitude spanning a variety of technologies, including computers, mobile devices, and operating systems, to identify and respond to security breaches and network hacks.

  This expert has over 30 years of expertise in information security and data forensics, particularly data recovery. This expert has experience consulting on laptop and desktop computers, solid-state drives, hard-disk drives, Apple and Android cell phones, tablets, and removable media. This expert is an experienced expert witness and litigation consultant.

  
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• Expert Witness #282733

  This code review expert has over 20 years of experience with networking at all layers of the network stack and comparable experience developing embedded software, including device drivers for wired and wireless network interfaces, operating systems, and application software.

  Technical experience includes writing software in a variety of languages, including assembly language, C, C++, Python, and other scripting languages, as well as work with NVIDIA/Mellanox BlueField DPUs.

  This expert has performed reverse engineering of firmware and binary images and source code review for technology-related litigation. Additional litigation-related work includes developing claim charts and evidence of use documents for technology licensing and litigation, as well as deposition testimony.

  
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• Expert Witness #283778

  This freight brokering expert holds a PhD and has experience with freight brokering that includes creating, licensing, insuring, and operating a number of separate brokerage operations within multiple companies. This expert also regularly worked with freight brokers and represented employers in those interactions.

  This expert is familiar with the process commonly used by freight brokers when adding a new carrier, either for a single load or contractually for an ongoing business partnership, and understands the information and data brokers request initially and on an ongoing basis, as well as the methods and systems they use to monitor carriers.

  
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• Expert Witness #285049

  This cannabis horticulture and horticulture damages expert has over 15 years of experience in the commercial cannabis industry, including general and cultivation management roles for multiple cannabis cultivation businesses with large-scale cultivation facilities and annual lab-tested cannabis production measured in thousands of pounds.

  This expert works with architects and engineers to finalize designs, incorporate specialized cannabis systems and equipment into plans, and support contractors throughout construction, commissioning, and inspection phases. At the onset of operations, this expert works with clients to select genetics for their sites, oversee recruiting and hiring, create standard operating procedures for operations, train staff on their use, train staff to operate facility systems, and oversee or support operations throughout the start-up period.

  This expert also supports and oversees post-processing operations for cannabis businesses, including harvest, drying and curing, trimming and manicuring, laboratory testing, packaging, extraction, and product manufacturing.

  
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• Expert Witness #299547

  This manufacturing equipment expert holds PE, FCIBSE, and LEED AP credentials and has experience in the design and control systems for laboratories and research facilities, microelectronic facilities, and pharmaceutical facilities.

  This expert has a history in the design of cleanroom HVAC systems, including facilities requiring control of airborne contaminants. Sterile or aseptic environments are common in pharmaceutical processing and have equivalents in microelectronics work, and some of those facilities may be cleaner than many operating rooms.

  This expert is an experienced expert witness and litigation consultant.

  
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• Expert Witness #300544

  This gpu computing expert holds a Ph.D. in Computer Science and is an accomplished academic and research leader with over 30 years of experience across academia, industry, and government collaborations. This expert serves as a Professor of Computer Science and Engineering at a California public research university, following earlier roles as Assistant Professor and Associate Professor. This expert earned a Ph.D. in Computer Science from a well-regarded public university, with earlier degrees in Computer Science and Mathematics from another well-regarded public university. This expert's research spans soft real-time systems, scalable data management, storage systems, and open-source software.

  In recent years, this expert held leadership roles as Associate Vice President for Research & Innovation within a statewide public university system and as Co-founder and Chief Operating Officer of a clean hydrogen energy systems alliance. This expert previously served as a special advisor to senior research leadership and as Vice Chancellor for Research at a California public research university.

  This expert was honored with a named presidential chair in open-source software.

  This expert is a Professor of Computer Science and Engineering with a Ph.D. in Computer Science and over 35 years of professional and academic experience. This expert's research is in computer systems, with significant experience in operating systems and high-performance, parallel, and distributed computing, as well as experience with GPUs. This kind of computing is within this expert's domain of expertise. This expert served for over 5 years as Vice Chancellor for Research at a California public research university and for a number of years as Associate Vice President of Research and Innovation within a statewide public university system. This expert has served as an expert witness in over 10 cases over the past 25 years, has been deposed in most of them, has testified in Markman hearings, and has testified in trial and arbitration. This expert is a practiced public speaker with extensive experience in the classroom, conferences, and other venues. As one significant example, this expert led a successful statewide effort related to a Department of Energy hydrogen hub in California, involving extensive speaking engagements with industry members, community members, community organizers, politicians, academics, and others.

  This expert is an experienced expert witness and litigation consultant.

  
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