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The Tarr Law Knowledge Hub

A specialist intellectual property law firm built on deep technical expertise, disciplined thinking, and an unwavering commitment to client outcomes.

Blog
May 13, 2026

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3 min read

Zip Co Limited v Firstmac Limited: High Court clarifies honest concurrent use

It's amazing when the High Court judges break the law down to conceptualise it in a way I hadn't really consciously thought of before.
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Blog
May 7, 2026

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4 min read

Taylor Swift, Matthew McConnaughey, deep fakes, AI, and movement trade marks

I am informed by a close friend (despite his proclivity for morning news) that there is currently a lot of to-do on the trashy Australian morning TV news programs about Taylor Swift's use of trade mark registrations to take down deep fakes created by AI. He suggested I weigh in.
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CopyrightTrade Marks
May 2, 2026

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4 min read

Copyright/Trade Mark overlap: s42(b) grounds for opposition where a non-exclusive licensee to a copyright work tries to register it as a trade mark

One of the grounds for opposition to registration of a trade mark is that use of the trade mark would be contrary to law. This ground, under s42(b) of the Trade Marks Act 1995 (Cth), is often used where:
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Blog
April 24, 2026

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3 min read

Australian trade mark system changes: how we can make things better for SMEs

This week, I was contacted by the Sydney Morning Herald, to speak about a particular trade mark matter. While speaking about that matter would require my client's authority, I jumped at the chance to give the SMH a list of trade mark system changes I believe would help SMEs.
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Copyright
April 18, 2026

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3 min read

AI produced logos are not copyright works.

That human graphic designer may then have assigned the copyright in the logo to their employer under their employment contract or to the third party that engaged them under their contract for services, meaning someone held copyright rights in that logo and could enforce them against a third party at any point on and from creation.
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Trade Marks
April 1, 2026

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4 min read

Tarr Law selected to test AI chat bot for trade marks

I was pretty chuffed to be the very first Australian attorney invited by IP Australia to review the new AI chat bot they are developing.
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Blog
March 25, 2026

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3 min read

What to do when you are faced with a trade mark dilemma: an IRDA set to lapse just before a cited IRDA is limited or cancelled to the extent of the international registration of which it is a designation

Under s 36 of the Trade Marks Act, the registrar may defer the acceptance of a trade mark application upon request of an applicant in the circumstances set out in the regulations.
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