Lululemon is suing Costco for allegedly infringing on its trademarks and design patents by selling dupes of its clothes.

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

And yet, the company keeps making new highs in revenue and earnings and is now starting to aggressively return capital to ...

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'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, ...

Model Carson Branstine made her Wimbledon debut on June 30 and lost to world No. 1 Aryna Sabalenka in straight sets.

In a lawsuit filed Friday in the U.S. District Court for the Central District of California, Lululemonclaims that certain ...

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