A company cofounded by a Georgia Tech professor and acclaimed inventor has sued apparel companies Ralph Lauren, Adidas and Victoria’s Secret, among others, alleging patent infringements of a shirt he helped to design that monitors a wearer’s vital signs.

Sarvint Technologies Inc. sued seven companies in all, claiming that they are marketing fitness shirts—and in the case of Victoria’s Secret, a sports bra—that infringe patents for the Smart Shirt that are held by Sarvint Technologies.