A man wearing glasses and a gray suit jacket over a light purple shirt stands in a modern office setting, representing lawyers in Chicago.

Tianran Yan

Partner

When clients need help with the intellectual property underpinning today’s lifesaving advances in medicine, Tianran (T.R.) Yan leverages his scientific background to advise on effectively managing their innovations. As the chair of the firm’s Chemical, Biotechnology & Pharmaceutical Practice, T.R. plays a critical role in helping shape the firm’s strategy at the intersection of the Health Care & Life Sciences and Innovative Technology sectors.

His education in biochemistry, molecular genetics, and biotechnology combined with legal acumen enables an invaluable understanding of new technologies and their impact on the marketplace.

T.R. assists clients with intellectual property (IP) strategies, including patent prosecution and counseling, due diligence investigation, patent portfolio management, patent enforcement and licensing, freedom-to-operate investigation, and patent validity and infringement analyses. One particular area of focus is post-grant proceedings, where he has successfully represented clients in patent reexamination, reissue, and inter partes review (IPR) proceedings.

Examples of clients working on groundbreaking technologies include those developing CRISPR genome editing, mRNA medicine, liquid biopsy, next-generation sequencing (NGS), therapeutic antibodies, engineered cell therapy, and regenerative medicine.

Outside of patents, T.R. has also represented clients in IP due diligence investigations by performing reviews for IP licenses, IP portfolio sales, corporate financing, investments, mergers, and acquisitions.

Augmenting his practice, T.R. is a native speaker of Mandarin Chinese and has extensive experience counseling Asian technology companies on strategic IP development and transactions in connection with their operation in the U.S. market.

Awards and Recognition

  • Recognized as a Next Generation Lawyer for patent prosecution (including re-examination and post-grant proceedings) by The Legal 500

Presentations and Publications

  • “Delivery of Cell, RNA and DNA Therapeutics – Surveying the Business and IP Landscape,” Foley Webinar (May 2021)
  • “Navigating the CRISPR Patent Landscape and Business Impact,” Foley Webinar (June 2016)
  • “Due Diligence for Intellectual Property: Valuing Assets in a Transaction,” Law Journal Press (2014)
06 June 2023 Events

Foley 2023 BIO International Convention Reception

On June 6, Foley & Lardner’s Health Care & Life Sciences and Innovative Technology Sectors hosted a networking reception in conjunction with the BIO International Convention in Boston, MA.
18 May 2021 Events

Delivery of Cell, RNA and DNA Therapeutics | Surveying the Business and IP Landscape

The rapidly growing pipeline of promising cell and gene therapy candidates has created a growing focus on delivery technology that safely and effectively allows these therapies to reach their disease targets in humans.
04 June 2019 Events

2019 BIO Reception: Clover Clubs, Cheesesteaks, and Convention Connections

Foley is pleased to host its annual networking reception at the 2019 BIO International Convention in Philadelphia on Tuesday, June 4, in partnership with the Personalized Medicine Coalition.
February 1, 2019 Press Releases

Foley Elects New Partners

Foley & Lardner LLP announced today that its new class of partners has been elected, effective February 1, 2019.
June 1, 2017 Press Releases

The Legal 500 United States Recognizes 19 Foley Practice Areas

Foley has been recognized in 19 practice areas by The Legal 500 United States 2017, an analysis of law firms based on surveys and interviews of more than 250,000 corporate counsel. The firm maintained three top-tier recognitions and received 16 additional firm-wide recommendations.
A group of clear glass test tubes, one filled with a red liquid, is set against a blue background—an image often seen in law offices or used by lawyers in Chicago specializing in intellectual property law.
July 29, 2016 Blogs

Keeping Up To Date On CRISPR – July 2016

CRISPR is a gene editing technique that promises to revolutionize genetic engineering, but already is raising ethical, business, and legal issues.