In an era of design dupes, of course the court of public opinion is siding with Costco. On June 27, Lululemon filed a lawsuit ...

Lululemon Athletica claims that Costco “unlawfully traded” on its reputation by selling unauthorized and unlicensed versions ...

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