Praised as ‘highly responsive and knowledgeable’, IP prosecution and litigation boutique Tsai Lee & Chen Patent Attorneys and Attorneys at Law’s expertise spans the technology, telecoms, semiconductors, biochemistry, pharmaceuticals, and mechanical and electrical engineering sectors, and maintains a track record in landmark IP cases in Taiwan. The practice’s leadership is trifurcated between Taipei-based trio Victor LeeJesse Peng and Crystal Chen. Chen is a patent enforcement, copyright and trademark infringement specialist, while Peng stands out for his expertise in electrical engineering.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Tsai, Lee & Chen is one of the best IP I work with. Their whole team is very responsive and their analysis, recommendations, and explanations are thorough, well thought out, and easy to understand.’

  • ‘Excellent and knowledgeable on trademark prosecution issues. Highly responsive and clear in communications.’

  • ‘The team is highly responsive and knowledgeable. The advice and instructions are clear and concise.’

Key clients

  • Applied Materials
  • Corning
  • Qualcomm
  • Microsoft
  • TSMC
  • DIC Corporation
  • AU Optronics
  • Inergy Technology
  • Resonac Corporation (formerly Hitachi Chemical)
  • ASUSTek Computer Inc.
  • TSH Biopharm
  • Delta Electronics
  • CMP Group (China Metal Products)
  • Shin-Etsu Polymer
  • Daio Paper
  • Inergy Technology (TW)
  • Hon Hai Precision (TW)
  • Applied Materials
  • Corning
  • Qualcomm
  • Microsoft
  • TSMC
  • DIC Corporation
  • AU Optronics
  • Inergy Technology
  • Resonac Corporation (formerly Hitachi Chemical)
  • ASUSTek Computer Inc.
  • TSH Biopharm
  • Delta Electronics
  • CMP Group (China Metal Products)
  • Shin-Etsu Polymer
  • Daio Paper
  • Inergy Technology (TW)
  • Hon Hai Precision (TW)

Work highlights

  • Represented Inergy Technology to succeed in an anti-competition complaint.
  • Represented realty developer, CMP, as the plaintiff to win a trademark infringement lawsuit for a commercial project in a CBD of the central part of Taiwan.
  • Represented Lensar in a patent administrative suit versus Taiwan IP Office contending the admissibility of patent priority document’s formality.

Lawyers

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head

The lawyer(s) leading their teams.

Victor Lee, Jesse Peng, Crystal Chen