Katy Perry loses 17-year trademark battle to Australian designer Katie Perry - Dispute focused on who had right to sell ...

Sydney-based fashion designer Katie Perry had always dreamed of starting her own clothing brand. She never imagined a global pop star would be her biggest obstacle.

Katy Perry was dealt a loss in her long-running trademark dispute with an Australian fashion designer named Katie Perry — but the case isn't over.

The members of legendary 80s rock band Australian Crawl are locked in a legal stoush over the trademark to their name, 40 years after they split.

Australian designer Katie Perry wins High Court trademark case against pop star Katy Perry, securing her rights to use her name for fashion.

Australian Crawl founders James Reyne and Simon Binks have launched a Federal Court challenge over trademarks held since the 1990s, raising questions about ownership and legacy.

defensive trade marks: a defensive trade mark registration is available to the owner of a registered mark where the owner can demonstrate that, due to the use made of the mark in relation to the ...

The US singer lost the case in 2023 and later won on appeal, but now judges have ruled against her.