A summary of Southern California-related business litigation developments during the past week.

Taiwanese Firm Is Sued Over Bath Products: Baldwin Hardware Co., a Pennsylvania firm that manufactures bath accessories, sued FrankSu Enterprises Co., a Taiwanese competitor, for design patent infringement and unfair competition. The federal lawsuit also names Decorator Accessories, a Pacoima, Calif., firm that sells FrankSu products and allegedly solicited Baldwin distributors as customers. The suit says FrankSu embarked on “an extensive program of copying Baldwin product designs” shortly after Baldwin introduced its bath accessories in 1985. (Case No. 90-4919. Filed Sept. 13, 1990).