Matt Sumpter Matt Sumpter

Matt Sumpter

Partner, Chapman Tripp Patents Director
Auckland

Competition & antitrust
Intellectual property

Matt is a widely respected expert in competition law and intellectual property.

He is the author of New Zealand’s principal antitrust textbook, New Zealand Competition Law and Policy, and writes for a range of common law legal journals.

Matt is recognised as a leading individual in competition law and in the Hall of Fame for intellectual property by Legal 500 Asia Pacific, a Leading Lawyer by Chambers Asia Pacific, and a Global Leader providing IP value creation expertise by IAM. He is a recognised Trademark Star by Managing IP.

Matt is Managing Director of Chapman Tripp Patents.

Recent highlights

  • Acting for clients such as Tik Tok, Amazon and Meta across a range of intellectual property and trade practice matters.
  • Securing Commerce Commission approval in high-profile mergers such as Sky/Warner Bros, Accolade Wines/Pinod Ricard, NZ Post/PBT, Ingenico/Paymark, Mercury/Trustpower, Henkel/Earthwise Sky/NEP.
  • Counsel to six major Hollywood studios securing ex parte civil search orders, asset freezing orders and interim injunctive relief that shut down one of the world’s largest online piracy operations in cross-border litigation.
  • Acting as counsel to clients including STgenetics, LG Display, Allegion and Fisher & Paykel Healthcare in complex patent litigation in the High Court and Court of Appeal involving matters spanning flow cytometry, LCD screens, security technology and medical devices.
  • Advising Facebook on the Royal Commission of Inquiry into the attack on Christchurch Mosques.
  •  Appearing for ANZ Bank in successful Supreme Court litigation concerning the sale of financial derivatives.

Matt's insights

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Chapman Tripp recognised in IAM Patent 1000 2026

Chapman Tripp has again been recognised in the IAM Patent 1000 2026, with rankings for both patent prosecution and patent litigation, reflecting the strength of the firm’s full-service intellectual property practice.

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Recognising our team in Chambers Asia-Pacific 2026

We are delighted to share that several of our team members have been recognised for their expertise in the Chambers and Partners Asia-Pacific 2026 guide. We’re also proud to see our firm ranked across 17 key practice areas, including 10 Band 1 rankings.

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Two new attorneys for Chapman Tripp Patents

We are delighted to announce that two new patent experts have joined our rapidly growing practice, Chapman Tripp Patents. We welcome Senior Associate, Toby Larsson Hogman and Patent Attorney, Hossein Mehrabi.

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Expanding our patent-attorney service offer

We are celebrating another milestone in the growth of our specialist patent-attorney firm, Chapman Tripp Patents (CT Patents), with the appointment of a new senior patent attorney.

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Chapman Tripp launch new patent attorney practice

Chapman Tripp Patents, launched today, extends our market-leading intellectual property practice which provides copyright, trade mark, industrial design, commercialisation and litigation support to a blue chip client base.

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Advising Sky on Lightbox deal

We advised Sky on its purchase of Lightbox, Spark’s streaming TV service.

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Managing IP New Zealand Contentious Firm of the Year

​Chapman Tripp has won the New Zealand Contentious Firm of the Year Award 2019 at the Managing IP Asia-Pacific Awards.

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