Skip to content

David Weiss

David N. Weiss is a partner in our Los Angeles office.  Mr. Weiss focuses on domestic and international patent protection, copyright protection, trade secret protection, and other forms of intellectual property protection.  His technical experience includes electronic, software, and computer-related technologies, as well as communication technologies, mechanical devices, and e-commerce.

In addition, Mr. Weiss’ practice includes general counseling on licensing and infringement issues, drafting license and confidentiality agreements, as well as intellectual property due diligence studies and related negotiations for mergers and acquisitions.  He also frequently conducts in-house seminars to assist clients in identifying and prioritizing patentable inventions.

Mr. Weiss currently represents clients in a wide range of technologies, including wireless and VoIP communications, media distribution, video encoding and decoding, computer security, semiconductor devices, solar power, mass storage systems, healthcare information technology, optical network architectures, instrumentation, and automated processing systems.  He also represents software clients in matters involving e-commerce, electronic watermarking, restaurant management, phone applications, gaming, and electronic business methods.

Before joining the firm, Mr. Weiss worked for Hughes Aircraft from 1979 to 1985, where he was a lead engineer and designer of avionics, memory systems and automated test equipment. He then worked at Lockheed Electronics as a senior principal engineer. Subsequently, Mr. Weiss joined Smiths Industries, where he was section head of their microprocessor and digital design group, as well as project manager of their flat panel display systems product line.

Mr. Weiss joined the firm in 1995 and became a partner in 2000.

Rutgers School of Law, J.D.
University of California – Los Angeles (UCLA), B.S., Electrical Engineering, with honors
State Bar of California
State Bar of New Jersey
State Bar of New York
U.S. Patent and Trademark Office
Communications Technology

Cellular Networking & Communications

Fiber Optic Networks

Internet Telephony

Low-Power Networks




Wireless Local Area Networks

Consumer Products & Services

Restaurants & Hospitality

Electrical, Semiconductor & Computer Technology

Electronics & Semiconductors

Healthcare Information Technology

Software & IT


Clean Technology

Energy Conservation

Energy Efficient Technologies

Green Building & Construction


Solar Power

Financial Services & Business Methods

Blockchain & Smart Contracts

Cloud Computing

Cryptocurrency & Encryption

Data Privacy

Dispute Resolution

Licensing & Indemnification

Media, Advertising & Entertainment

Amusement Parks


Digital Distribution

Film & Television

Mobile Applications


Online Games

Social Media


Video Games and Interactive Entertainment

Medical Devices & Procedures

AI & Machine Learning

Medical Informatics & Software Systems

Mental Health & Wellness


Transportation & Vehicles

Aerospace & Space Technology

Air conditioning / Heating systems


Brake Systems

Diagnostic Equipment

Electronics (Audio / Video, Communication, Navigation, Security)

Assignments and Licenses
Design Patents
Due Diligence
Global Portfolio Management
Infringement Risk 
IP Strategy
IP Transactions and Agreements
Opinions Counseling
Patent Strategy & Prosecution
Tech Transactions
Trade Secret
Trade Secret Protection Advice, Counseling, Employee & Nondisclosure Agreements
U.S. Patent Prosecution

  • Recognized by the Los Angeles Business Journal as one of “the most influential intellectual property attorneys” in the LA region (2017)
  • Received the “Sector Award: Best Clean Technology Team” by Acquisition International Magazine (2014)

American Intellectual Property Law Association (AIPLA)

Los Angeles Intellectual Property Law Association (LAIPLA)

Los Angeles Venture Association (LAVA)

Century City Bar Association

By using this blog, you agree and understand that no information is being provided in the context of any attorney-client relationship. You further agree and understand that nothing herein is intended to be legal advice. This blog is solely informational in nature, and is not intended as, and should not be used as, a substitute for competent legal advice from a retained and licensed attorney in your state. Knobbe Martens LLP makes no representations or warranties as to the accuracy, completeness, timeliness or availability of the information in this blog. Knobbe Martens LLP will not be liable for any injury or damages relating to your use of, or access to, any such information. Knobbe Martens LLP undertakes no obligation to correct or update information on this blog, which may be incorrect or become incorrect or out of date over time. Knobbe Martens LLP reserves the right to alter or delete content or information on the blog at any time. This blog contains links and references to other websites and publications that you may find of interest. Knobbe Martens LLP does not control, promote, endorse or otherwise have any affiliation with any other websites or publications unless those websites or publications expressly state such an affiliation. Knobbe Martens LLP further has no responsibility for, and makes no representations regarding, the content, accuracy or any other aspect of the information in such websites or publications.
close modal