Lululemon alleges that Costco has stolen the intellectual property of its Scuba hoodies and sweatshirts, Define jackets and ...

Lululemon has filed a lawsuit against Costco that accuses the wholesale club operator of selling lower-priced duplicates of ...

Lululemon has a steep hill to climb. The line between following a trend and illegally copying a design can be quite ...

In a lawsuit against Costco over a variety of apparel designs, the athleisure brand laments the proliferation of ...

Cheaper look-alikes have been around for years, but social media has made them more popular. Dupes can move into shaky legal ...

The Canadian athleisure brand has accused the warehouse club operator of copying at least six of its products, including its ...

Vancouver-based Lululemon asserts that Costco sells apparel that mimics the look and feel of its products.

The athletic-wear giant in Lululemon (NASDAQ:LULU) filed suit in California last week, accusing Costco (NASDAQ:COST) of ...