Lululemon has filed a lawsuit against Costco claiming that the membership-based wholesale retail company sold similar ...

Lululemon is accusing Costco of stealing from its "path-breaking" brand by selling dupes of its sweatshirts, jackets and ...

Lululemon is suing Costco, alleging that the discount wholesaler is selling knockoffs of its $128 pants and other pricey ...

The popular athletic clothing brand Lululemon is suing Costco for allegedly selling unlicensed versions of its products.

Lululemon's leggings are well-known and highly prized. They're also pretty costly. However, now the company is taking aim at ...

A major legal clash has erupted between luxury sportswear brand Lululemon and wholesale giant Costco, with accusations of ...

Lululemon filed a patent infringement lawsuit against Costco, alleging the warehouse retailer violated intellectual property rights.

In a lawsuit filed Friday, Lululemon claimed Costco was violating its patents by selling “knockoff” versions of its pants, ...

Lululemon has initiated legal proceedings against Costco, accusing the retail giant of selling unauthorized copies of its ...

The athleisure company is seeking to recover full financial losses and has requested the court to order Costco to cease ...