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

Lululemon sues Costco accusing it of selling brand knockoffs - Lululemon has claimed dupes of its products that Costco is ...

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

Matt Ryan, a Boston-based marathon runner, law student and self-proclaimed Lululemon loyalist, says Rhone has taken over a ...

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

Lululemon has filed a lawsuit against Costco alleging the wholesaler is selling “unlawfully traded” versions of its signature ...

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

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

Prosecutors described it as the largest coordinated takedown of health care fraud schemes in Justice Department history.

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

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