User Interface Expert Witnesses

Start User Interface Expert Search

User interface expert witness candidates typically have extensive experience and expertise in electrical engineering, user interface design, product designsystems engineeringcomputer graphics, software development, and/or computer science.

User interface (UI) is the means by which a human controls a software application or hardware device. The goal of user interface design is to produce an interface which makes the usability and operability of a machine as efficient as possible. Keypads and touchscreens are examples of hardware user interface. Graphical user interface (GUI), a subset of user interface, allows users to interact with electronic devices through graphics, icons and audio, as opposed to text-based (typed) user interfaces. The engineering of user interface products is enhanced by human factors engineering, which is part of systems engineering. Some high profile user interface cases have involved HTC, Motorola, AT&T, Microsoft, Apple and Samsung).

Often, matters requiring user interface expert witness services involve intellectual property, such as patent infringement litigation, inter partes review or trade secret disputes. A forensic expert can reverse engineer components to prove (or disprove) intellectual property infringement or theft. Litigation support by a user interface expert witness could include reverse engineering, expert reports, expert opinion, deposition testimony, and expert testimony at a trial. In a high-profile case, or litigation involving a significant financial stake, a law firm may request a testifying expert with prior expert witness experience. An expert witness needs to not only have expertise, an expert witness must possess the ability to explain technology and evidence to lay people. In addition, clients may seek a user interface industry expert for pre-litigation consulting work.

Related Disciplines

User Interface Expert Witness - Sample Bios

Please Note: All Cahn Litigation expert witness searches are customized to attorneys' precise specifications and preferences. Attorneys are encouraged to discuss search parameters with a Cahn search specialist.

Start Custom Search

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


Expert Witness #225926

This expert is president and Founder of a highly successful, internationally acclaimed consulting firm, offering services in usability science, formal user-centered product design, high-performance user interface design and design IP rights. This expert is a Certified Human Factors Engineering Professional BCPE. This expert has managed over 4,000 research and development projects over a long career as a leading expert in human factors engineering, product design, and design research.

This expert has a BS in Industrial Design and a Masters in ergonomics and biomechanics. This expert worked directly with product design pioneers. This expert was directly responsible for research and development of mission-critical user interfaces, including the design of primary trading systems. This expert's experience spans many years and includes consumer, commercial, military, and aerospace applications. This expert served on several national and international panels and has chaired two ANSI standards committees. This expert has consulted with many leading corporations on strategic issues of screen-based UX optimization, product design, usability science, Intellectual property, and fixed to virtual migration of products and services.

This expert has served as an expert in over 75 major IP cases covering design patents, trade dress, copyright, utility patents related to GUI & product design for the most demanding and high-visibility clients and law firms. The following is an example of the research services this expert offers designed to improve legal outcomes in an increasingly complex litigation environment:

-  Pre-Complaint Rapid Infringement Assessment
-  Prior Art Research and Analysis (Unconventional Sources)
-  Consumer Research for the Ordinary Observer Test
-  Design Patent Damages Research and Strategy
-  Consumer Research for Copyright Infringement Analysis
-  Specialized Trial Visual Aid and Demonstration Development
-  Trial Narrative Testing
-  Design Change Analysis to Reduce Possible Infringement

This expert holds numerous U.S. and international patents and has been quoted as an expert in the field. This expert is a frequent speaker at national and international conferences on UX optimization, usability science, user interface design and IP related matters. This expert lectures at leading graduate programs.


Start User Interface Expert Search


Expert Witness #226281

Described as one of the most thoughtful and provocative interface and interaction designers working in the field, this expert specializes in User Interface Design, Human Interface, Human-Computer Interaction, Interactive Media, User Experience, User-Centered Design, Information Technology, Internet, Mobile, Telecommunications, Video and Intellectual Property. This expert holds an MS in Interactive Telecommunications and has an extensive background analyzing and creating consumer user experiences across a variety of form factors. This expert has designed touch screen remote controls, mobile device interfaces, television set-top box user interfaces, tablet computers, telecommunications systems and myriad desktop software applications, many involving user interfaces and patents related to audio and video media management. Leading the design of award winning human-computer interfaces, this expert has published numerous articles on the subject, and has been granted a variety of patents for cutting-edge techniques, including several for a method and storage device for expanding and contracting continuous play media seamlessly. This expert has 100+ patents and patent applications in software and hardware human interaction, many years designing user interfaces and establishing user experience strategies for major corporations and is a former university professor and Fortune 500 executive.

This expert has hands-on experience with litigation workflow throughout (and in anticipation of) patent infringement lawsuits -- including declarations, depositions, court room tutorials and expert witness testimony. This expert is experienced collaborating with complementary experts in areas of engineering, due diligence, and damages modeling. This expert has served both plaintiffs and defendants in claim construction, Markman hearings, infringement analysis, validity analysis, reexamination support and jury trials.


Start User Interface Expert Search


Expert Witness #246640

This expert is a Ph.D. Product Designer providing expert witness services and specializing in user interface and industrial design. This expert provides consulting and expert witness work and was an Adjunct Professor of Industrial Design. This expert's specific hand-held mobile interface work for wireless browser-enabled mobile devices and hand-held remote-control devices includes qualitative research, evaluation and testing, interface prototyping, usability evaluation and the actual interface design. This expert has testified at deposition, in federal court and before the ITC.


Start User Interface Expert Search


Expert Witness #248343

This expert has designed and analyzed the microelectronics and software for systems managing media remotely and performing music downloads for many years and is an award winning inventor for innovative digital audio engineering design and valuable contributions to the advancement of audio engineering. This expert has been involved with the technologies behind the remotely-managed media and uploaded and downloaded music files. This expert has designed cable TV multiprocessing systems for managing media remotely and performing music downloads. Most of the microelectronics circuits this expert has designed at the transistor/resistor/capacitor and chip level involved amplifying signals, controlling impedance and output speed characteristics, and included the design of timing circuits, level converters and latching digital signals. While on the Editorial Board of a renowned publication for electronics engineers, this expert analyzed the internal design of memory chips (including memory bit cell arrays) and state-of-the-art integrated circuits for processing and storing media. This expert has worked on the engineering design of audio signal processors and memory systems, including emitter-coupled design with controlled impedance, as well as user interface design for content selection and control. Further, this expert has designed user interfaces for media content selection and control. This expert also has designed and developed processors and memory systems as well as high fidelity digital-to-audio and audio-to-digital conversion circuitry, included timing circuits, impedance control, level control, signal amplification, latches and memory design. This expert has worked on the engineering design of a multiprocessor media server. This expert has analyzed hundreds of patents and has researched, reverse engineered and analyzed microelectronics and software.


Start User Interface Expert Search


Expert Witness #253100

Corrective Imaging Technologies Expert

This expert holds a PhD in Computer Science and serves as Associate Professor of Computer Science. This expert's research is primarily in the areas of computer graphics and image processing but overlaps with computer vision and visualization while also having strong multi-disciplinary collaborations outside of computer science.

This expert also serves as CEO and develops the company's corrective imaging technology that helps a person with visual impairments to see electronic images or text properly. It allows people to see digital content with increased sharpness on displays like tablets, smartphones and laptops without the need for corrective eyewear.

This expert's prior work in image processing has included designing new cameras, developing camera calibration algorithms, new image processing algorithms for improving focus, and bettering image-based 3D reconstruction. This expert has multiple publications in this area and has also published user interface related papers for synthetic displays, virtual reality, and augmented reality. Further, this expert is familiar with the autofocus method and user interface in digital SLR cameras as well as in smartphones.   

This expert has membership in more than 65 program committees including all of the leading conferences in the field, several on-going international multi-disciplinary collaborations (i.e., with experts in computer science, photogrammetry, urban planning, architecture, meteorology, atmospheric sciences, earth sciences, traffic engineering, and more), invited national and international talks and presentations, funding support from multiple entities, and technology transfer (e.g., roles in several startups and multiple patents).

This expert has previous experience as an expert for litigation, including report writing, depositions, and in-court testimony.


Start User Interface Expert Search


Expert Witness #259373

During many years as a university professor, this expert taught many classes in User Interface Design and related areas, both at the undergraduate and graduate level. All of these were courses that this expert both introduced and developed. These courses addressed specifically GUI, Gesture-based input, and Conversational user interfaces. In addition to these specialty courses, this expert also taught courses on Object Oriented Programming, Applications Programming, and Operating Systems (among others). These courses covered topics including Database queries and Client/server communications architectures. In addition this expert consulted with companies during his academic career, providing GUI design and development services. This expert's research work and work with graduate students in Visual Languages and End User Programming included a significant aspect of user interface design.

This expert has been providing expert witness and consultant services in support of intellectual property litigation relating to computer software and hardware for many years. The cases worked on span a wide and diverse range of application areas including as video games, medical equipment, automotive technologies and cellular telephones. This expert is particularly adept at taking large, complex bodies of source code, quickly and accurately forming an in-depth understanding of the operation of the systems, and then determining the relationships between the systems and the claims of relevant patents (in the case of patent litigation), or between the systems and other systems (in the case of trade secret or copyright litigation). This expert has been involved in analysis and report writing with respect to both validity and infringement, been deposed in eleven matters, and testified at trial in three cases. In one particularly large case this expert worked closely with six other experts and served as liaison between the attorneys and the other experts, helping each group to understand the constraints and requirements of the other.


Start User Interface Expert Search


Expert Witness #246861

This expert is an accomplished human factors engineer, user interface designer, software engineer and systems engineer with extensive expert witness experience specializing in user interface design for embedded, mobile, web, desktop and server software. This expert has vast experience with designing systems that utilize touch sensitive user interfaces in the areas of smartphones, computer equipment, entertainment equipment, air traffic control systems, flight deck systems, medical devices and simulation systems. This expert founded two medical technology companies, both working on interfaces that utilize touch screen technology. This expert is the founder and CEO of a technology company focusing on location tracking applications for GPS enabled smart phones. This expert is an inventor, designer and author of several GPS mobile application software products currently available for iPhone and Android devices. As an expert witness, this expert has worked on a wide variety of patent litigation cases for both plaintiff and defendant.


Start User Interface Expert Search


Expert Witness #258365

This expert is a Ph.D. Candidate and has deep experience as an expert witness in Multimedia Networking, Communication Systems, Graphical User Interface, Signal Processing and other related topics. This expert's focus is in the design and development of a broad range of technologies in software and hardware for applications in telecommunications and multimedia networking. This expert possesses expertise in digital video and voice communications systems over packet-based wireless and wireline computer networks. This expert has been a technical expert for intellectual property litigations, supporting the nation's top law firms for patent or copyright infringement.  


Start User Interface Expert Search