IPHONE DUO Trade Mark: Apple’s International Filing Strategy

Apple filed the trade mark for its new “IPHONE DUO” in the US on 9 September 2026, the same day it unveiled the product. However, this filing was not the first step in protecting and securing trade marks for the latest offering – Apple had already filed the mark in Liechtenstein on 12 March 2026.

How Apple Used the Paris Convention Priority Period

Under the Paris Convention, a trade mark applicant generally has six months to file in other member countries while claiming priority from the earlier application. This meant Apple could rely on its March filing date when filing in the US on the day of the product announcement.

Protecting Confidentiality Before a Product Launch

The approach also appears to have helped Apple keep the new product under wraps. An earlier US filing would have created a publicly searchable trade mark record months before the product launch and potentially reveal the “IPHONE DUO” name in advance. By filing first in Liechtenstein and then using the priority period, Apple could delay its US trade mark filing until the product was ready to be announced while preserving the earlier priority date.

Trade Mark Filing as Part of a Product Launch Strategy

The trade mark filing strategy highlights how international trade mark filings can form part of a broader product launch strategy. Businesses developing confidential new products or brands may be able to use the priority period to secure protection in key markets without immediately making their plans publicly searchable in every jurisdiction.

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The content of this article is provided for information purposes only and does not constitute legal or other advice.