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Patterson Belknap Webb & Tyler LLP

David Kleban

David Kleban



  • Alternative Dispute Resolution
  • Complex Commercial Actions
  • Antitrust
  • Intellectual Property Litigation

WSG Practice Industries



David Kleban is an Associate in the Firm's Litigation department.

Mr. Kleban represents clients in a variety of litigation contexts from pre-suit investigation through appeal and judgment collection.

Representative Matters

Enforcement of intellectual property rights in news content on behalf of major media entities.

Prosecution of fraud and breach-of-contract claims on behalf of monoline insurers against sponsors and originators of mortgage-backed securities.

Representation of an innovator pharmaceutical company in connection with patent claims against the manufacturer of a biosimilar version of the innovator’s blockbuster drug.

Defense of claims against a non-profit organization relating to U.S. government-sponsored medical experiments in the 1940s.

Guidance to investors in mortgage-backed securities, including analysis of procedural and substantive litigation considerations.

Representation of a company and its founder in an SEC investigation and administrative proceeding concerning alleged violations of securities law, resulting in favorable settlement of the claims.

Representation of a European bank in connection with an industry-wide investigation and private class action suit concerning alleged manipulation of a benchmark rate used for interest rate swaps and swaptions.

Pro bono prosecution of negligence claims on behalf of tenants affected by a seven-alarm fire in New York’s Chinatown.

Bar Admissions

  • U.S. Supreme Court
  • U.S. District Court, Southern District of New York
  • New York


  • Harvard Law School (J.D., cum laude, 2012)
  • Duke University (B.A., magna cum laude, 2007)
    • Phi Beta Kappa
Areas of Practice

Alternative Dispute Resolution | Antitrust | Complex Commercial Actions | Intellectual Property Litigation | Litigation


Antitrust Update
Patterson Belknap Webb & Tyler LLP 

Antitrust Update Blog is a source of insights, information and analysis on criminal and civil antitrust and competition-related issues. Patterson Belknap’s antitrust lawyers represent clients in antitrust litigation and counseling matters, including those related to pricing, marketing,...

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