Katy Perry: US pop star loses trademark battle against fashion

Katy Perry loses trademark battle over her name

In A Bold Trademark Case, Katy Perry Gets Hit With Infringement - Above the Law

Katy Perry trademark trial: Sydney designer Katie Perry wins court case

Katy Perry loses trademark fight with Australian fashion designer

Katy Perry loses trademark battle against Katie Perry

Katy Perry Loses Australian Trademark Dispute

Pop star Katy Perry loses trademark battle with Katie Perry

Katy Perry: US pop star loses trademark battle against fashion designer with same name, Ents & Arts News

Katy Perry: US pop star loses trademark battle against fashion designer with same name, Ents & Arts News

Katy Perry and fellow songwriters have new tune on plagiarism

Katy Perry loses trademark battle against Katie Perry

Katy Perry loses trademark fight with Australian fashion designer

Katy Perry: US pop star loses trademark battle against fashion designer with same name, Ents & Arts News