ROCK FIT FILES PATENT INFRINGEMENT SUITS: Rock Fit LLC on Aug. 3 filed two lawsuits in a Los Angeles federal court, one against J.C. Penney Co. Inc. and the other against HBI Branded Apparel Enterprises and Hanesbrands Inc. Rock Fit is the manufacturer of the Marika brand shape enhancing activewear. It alleged in the J.C. Penney lawsuit that the retailer’s Xersion performance wear fitted capri infringed on its “135” patent. The “135” patent also was the subject of the lawsuit against HBI and Hanesbrands over its alleged infringement in connection with its Champion Shape pants. In both lawsuits, Rock Fit is seeking damages and preliminary and permanent injunctions barring the sale of the alleged infringing product. A spokeswoman for J.C. Penney declined comment. A spokesman for Hanesbrand could not be reached for comment by press time.