JW Law Group

Specializing in Intellectual Property Law, Trademarks, & Patents.

Conviniently located in the heart of Silicon Valley, San Jose.

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We are a California-based intellectual property law firm specializing in patent preparation and prosecution, international and domestic patent counseling, patent validity analysis and opinions, IP licensing, and IP disputes. Our primary goal is to help our clients retain their competitive edge and protect their intellectual property assets.

JWLG offers complete and comprehensive intellectual property (IP) services to large U.S. and foreign corporations, individual entrepreneurs, innovative startup companies, research and academic institutions, and Silicon Valley establishments.


James M. Wu

Partner, Attorney

Jim Wu has over 20 years of experience focusing primarily in the area of patent procurement, international and domestic IP counseling, IP/business strategy, portfolio management, technology transfer, patent analysis and patent litigation. Jim has assisted many multinational clients with various aspects of intellectual property rights in the United States as well as in Asia.

Jim has authored over 300 patent applications with various different technologies, such as computer architectures, microprocessors, circuits, semiconductors, computer networking, storage/memory devices, commercial electronic devices, display technologies, packaging, fabrication techniques, control systems, network communications, medical instruments, RF technologies, wireless communications and devices, graphic display, haptics, optics, LEDs, and software related inventions.

Before founding JW Law Group, Jim was an attorney at several U.S. based international and domestic law firms (White & Case, Thelen Reid Brown Raysman & Steiner, Blakely Sokoloff Taylor & Zafman). Jim also worked as an in-house IP attorney for a leading programmable logic device (PLD) semiconductor company.

Prior to his legal career, Jim was a design engineer at IBM for more than eight years, where he was involved in designing microprocessors for various IBM products. Before joining IBM, Jim also worked as an engineer at the GE aerospace division implementing real-time engine control systems.


  • William Mitchell College of Law (J.D., 1997)
  • University of Washington (B.S.E.E., with honors, 1988)


  • California
  • U.S. Court of Appeals for the Ninth Circuit
  • United States District Court, Northern District of California
  • United States Patent & Trademark Office


  • English
  • Chinese

Daniel D. Tagliaferri

Of Counsel

Mr. Tagliaferri has been previously employed by Nokia Mobile Phones in San Diego to provide in-house patent counsel services, such as leading patent review committees, preparing and prosecuting patent applications, coordinating patent filings with outside counsel, and assisting with strategic IP planning. Mr. Tagliaferri has previously held associate positions with Townsend, Townsend and Crew LLP and Coudert Brothers LLP in San Francisco, where he provided patent preparation and prosecution services to help clients develop their patent portfolios.

He began a solo practice in 2002 in which he drafted hundreds of applications over a ten year period to support both large and small corporate entities. Prior to joining JW Law Group, Mr. Tagliaferri has been employed at:

  • Imperium Patent Works LLP., Pleasanton, CA. (Partner)
  • Law Offices of Daniel Tagliaferri, Alameda, CA. (Sole Practitioner)
  • Coudert Brothers LLP., San Francisco, CA. (Associate Attorney)
  • Townsend and Townsend and Crew, San Francisco, CA. (Associate Attorney)
  • Nokia Mobile Phones, San Diego, California (In-house Counsel)

Engineering Experience

Mr. Tagliaferri has performed engineering services including design and development of microprocessor based systems with associated software and analog circuitry in the following positions:

  • Hughes Network Systems, San Diego, California (Contract Engineer) — Developed communication system for commercial airlines.
  • American Innovision, San Diego, California (Senior Engineer) — Developed “True Color” image processing systems.
  • Varitronics Systems Inc., San Diego, California (Senior Engineer) — Developed high quality thermal printers.
  • Naval Underwater Systems Center, New London, Connecticut (Design Engineer) — Developed advanced towed-array sonar systems.


  • University of San Diego School of Law, San Diego, CA. (JD)
  • Northeastern University, Boston, MA. (B.S. Electrical Engineering)


  • California State Bar # 195245
  • U.S. Patent and Trademark Office # 43,178


Patent Preparation and Prosecution

Our attorneys have filed and prosecuted hundreds of patent applications before the United States Patent and Trademark Office for our domestic and international clients. JW provides legal services to High-Tech clients ranging from multinational cross-boarder corporations to small innovative startup companies.

Our patent attorneys are admitted to practice before the U.S. Patent & Trademark Office. Our extensive legal and technical experience allows us to consistently provide efficient and cost-effective legal services to our clients. JW provides a full range of patent related legal services including patent preparation, patent prosecution, patent mining as well as patent protection in foreign countries.

Patent Counseling

JW represents and counsels clients in all aspects of the worldwide patent procurement and enforcement of their IP rights. Our patent attorneys provide strategic counseling to our clients to create values to further their overall business objectives including developing offensive and/or defensive patent portfolio. JW assists its clients to tailor their various business/IP strategies such as minimizing IP infringement exposures to potential IP litigations and lawsuits.

JW has the expertise to perform due diligences and evaluate various patents and/or IP portfolio for potential merger and acquisitions. Our attorneys frequently perform roles of “outside in-house” counsels for our clients to manage cases and cost controls.

IP Services

JW provides comprehensive IP services including technology licensing, cross-boarder manufacturing outsourcing, enforcing and protecting IP rights, patent validity analysis, patent invalidity opinions, patent/trade secrets protection, copyrights/trademark protections, pre-litigation analysis, and IP protections in the U.S. as well as in Asia.

Technical Capabilities

JW has experience in the following technical fields: