The importance of providing sufficient evidence in invalidation proceedings

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Cookies Settings

The importance of providing sufficient evidence in invalidation proceedings

Sponsored by

aj-park.png
nz-evidence-min.jpg

A recent trademark decision by the Intellectual Property Office of New Zealand (IPONZ) reveals the importance of submitting reliable and probative evidence in invalidation proceedings, even when the invalidation proceedings are undefended by the trademark owner.

The decision confirms that IPONZ regards trademark registrations as important property rights that will not be invalidated unless the applicant makes out a true prima facie case for invalidity.

Case summary

g7

Cong Ty Co Phan Dau Tu Trung Nguyen (the applicant) applied to invalidate trademark registration 1067280 (G7 logo) in the name of Le Hoang Diep Thao (the registered owner) on the grounds that the applicant was the first user and lawful owner of the G7 logo and that the following applied:

  • Use of the G7 logo would be likely to deceive or confuse given the applicant’s common law rights in the G7 logo.

  • The registered owner’s use of the G7 logo is contrary to New Zealand law because it would constitute passing off and would amount to a breach of the Fair Trading Act 1986.

  • The applicant is the true owner of the G7 logo and the registered owner is not entitled to claim to be the owner of the logo.

  • The registered owner applied for registration of the G7 logo in bad faith.

The registered owner did not defend the registration. The assistant commissioner (AC) held that the applicant had not provided sufficient evidence to make out a prima facie case of invalidity of the G7 logo on any of the grounds claimed. Thus, the application for a declaration of invalidity was refused.

Evidence submitted by the applicant

To support its application for invalidity, the applicant provided as evidence:

  • printouts of website pages for www.vietnamesecoffee.co.nz (allegedly the applicant’s New Zealand website);

  • representations of packaging containing some form of the stylised G7 logo;

  • seven customer comments relating to its coffee products;

  • references to a physical delivery address for coffee in Te Awamutu; and

  • references to New Zealand telephone numbers.

Evidence not sufficiently reliable or probative

The AC held that the evidence provided did not make out a prima facie case for invalidity and identified the following main evidentiary issues:

  • According to the applicant, www.vietnamesecoffee.co.nz was the website of its New Zealand distributor. However, the distributor was not named, and the applicant provided no evidence of any agreement between itself and www.vietnamesecoffee.co.nz.

  • The applicant did not submit evidence regarding consumer awareness of www.vietnamesecoffee.co.nz.

  • It is not clear whether the products on www.vietnamesecoffee.co.nz were those of the applicant, the registered owner, or a third party.

  • The applicant did not submit any invoices, receipts, sales numbers, advertising spend, number of visitors to the website or other evidence on which the inference of reputation for the G7 logo mark could be made.

  • Although the applicant provided evidence of online customer comments, the comments did not make direct reference to the G7 logo.

  • The statutory declaration did not include a statement that the declarant had personal knowledge of the matters being declared and so had no probative weight.

The AC found that the applicant had not met the onus of establishing a reasonable prima facie case for any of the grounds of invalidity and dismissed the application.

This case reveals the importance of submitting reliable and probative evidence in invalidation proceedings and may serve as a guideline for the type of evidence that will be considered persuasive by IPONZ.



more from across site and SHARED ros bottom lb

More from across our site

Three successive wins have got the firm eyeing additional opportunities as ITC work booms
While many firms remain focused on generative AI, recent hires and practice launches suggest the next battle may be for lawyers who understand how AI is moving into the physical world
The explosion of data centres has prompted patent pool operators to create new licensing opportunities
The court struck out copyright claims brought by Ladbrokes owner Entain, saying that ownership details should have been completed before litigation began
Düsseldorf has overtaken Munich as the UPC's busiest division, while firms including Winston Taylor, Clifford Chance, and Hoyng Rokh Monegier featured in disputes involving Abbott, Essity, Amazon and Hurom
The managing partner gave up an equity partnership track in New York to build a practice in India. More than a decade later, she discusses entrepreneurship, leadership, and why women should not wait before taking the next step
Vice presidents Shinya Jitsuhiro and Hirohisa Suzuki discuss litigation trends in Japan, recruitment challenges and clients’ international expansion
IP boutique Petillion represented IKEA in the dispute, which concerned the use of the multinational’s trademarks in an immigration-focused campaign. The firm tells Managing IP how it secured the outcome
The Pizzeys-Griffith Hack integration was designed to create a stronger Australian IP platform but with several ex-Pizzeys principals now gone, the deal's success may depend on where clients place their trust
Thomas Lonsdale and Hsu Min Chung of HGF explore the practical impact of the EPO’s Enlarged Board of Appeal’s decision in G1/25 and its interplay with G1/24
Gift this article