Calvin Klein: Lululemon Athletica Inc.

Lululemon Athletica Dept: Lululemon Athletica TSX:LLL has filed a lawsuit in the U.S. alleging PVH Corp.'s Calvin Klein and G-III Apparel Group Ltd., a manufacturer and supplier for the brand, infringed on three patents covering an overlapping style of waistband, according to Winnipeg Free Press. Lululemon said in the documents filed Monday that Calvin Klein one of the most famous designers in the world sells pants under its "Performance" brand that include the same waistband design elements and pant style, which is covered by its patents and tORONTO - Trendy yoga gear maker Lululemon Athletica Inc. is suing Calvin Klein Inc. for patent infringement, accusing the designer of copying a waistband used on its popular body-hugging pants. The Vancouver-based retailer filed design patents for the Astro line of pants as early as September 2011, but filed patents on its crop pants much more recently, in June. (www.immigrantscanada.com). As reported in the news.