Yen-Shyang Tseng

  • Complex Commercial Litigation
  • Intellectual Property
  • Appellate Litigation
  • White Collar Criminal Defense

In just a few short years, Yen-Shyang Tseng has established himself as a premier law and motion and appellate lawyer. His work has resulted in key appellate victories for Keller/Anderle LLP in diverse areas. Yen’s outstanding written work is exceeded only by his analytical skill, prompting partner Jennifer Keller to call him “KA’s secret weapon.”

Yen has been an integral team member on litigation involving theft of trade secrets, insurance bad faith, minority shareholder oppression, defense of criminal contempt (in the context of a complex civil case), real estate partnership disputes, and white-collar criminal cases.


Yen-Shyang Tseng graduated in the top 5% of his class at Washington University School of Law in St. Louis.  He won CALI awards (for the highest grade in the class) in eight subjects. He also competed in the Giles Sutherland Rich Memorial Moot Court in patent law, placing in the top eight in the region.  Yen earned his B.S. in economics from Georgia Tech summa cum laude.

Yen’s Note “Governing Virtual Worlds: Interration 2.0” was published in the Washington University Journal of Law and Policy in 2011.  During law school he served as a research assistant for a professor and a student attorney for the Washington University Intellectual Property and Non-Profit Organizations Clinic.

Following law school Yen was a law clerk to Chief Judge Joseph R. Goodwin of the United States District Court for the Southern District of West Virginia, where he had extensive experience with complex multi-district litigation.  Before that he worked for the U.S. Attorney’s Office in the same district.

He speaks conversational Mandarin.