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INTELLECTUAL PROPERTY LAW

Intellectual Property Counsel Across Borders

Stepin Law P.C. advises individuals and businesses on protecting trademarks, patents, and copyrights. Securing your IP is essential to maintaining control over your innovations and brand.

We support clients in the United States and internationally, helping them navigate U.S. filings, enforcement, and cross-border matters. With practical, business-focused guidance, we help you protect what you create and grow with confidence.


How we help

  • Clarity first. We identify what matters now vs. later, so you don't over-file or under-protect.
    Useful for founders who need quick prioritization.
  • Cross-border aware. Strategy and documentation choices that work for U.S. + China context.
    Evidence, timelines, and practical enforcement considerations.
  • Execution-ready. Clean deliverables, checklists, and next-step options—no vague advice.
    So you can act immediately.

Our Attorneys

U.S.-licensed attorneys focused on practical, cross-border intellectual property strategy, filings, and dispute support.

Delong Li

Delong Li

Partner
Attorney at Law (California)
Attorney at Law (China)
Chinese Patent Attorney

Focus on patent litigation, invalidation, prosecution, due diligence, and freedom-to-operate (FTO) analysis. Technical background in telecommunications, audio/video systems, semiconductors, and computing technologies.

Representative matters involve clients such as TCL, Amazon, Intel, OPPO, HPE, Hitachi, Samsung, Tencent, and Kuaishou.

Irene Chen

Irene Chen

Partner
Attorney at Law (California)
USPTO Registered Patent Attorney
Chinese Patent Attorney

Focus on patent drafting and prosecution, reexamination and invalidation, patent administrative litigation and infringement matters, as well as trademark filing, prosecution, and dispute resolution.

Ready to protect your next step?

Send a brief description of your business, goals, and deadlines.