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

In the 49-page lawsuit filed in California, Lululemon shows the alleged design similarities of its products with Costco’s, as ...

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

Lululemon is suing Costco, claiming the retailer's Kirkland brand sells similar clothing, including pants and jackets, at ...

Lululemon has taken legal action against Costco for selling allegedly counterfeit athletic wear, highlighting issues of brand ...

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 ...

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, ...

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