As-seen-on-TV grout cleaners 01:51 We put two infomercial grout cleaners, Grout Bully and Groutinator, to the test to see if they can really make your grout look like new.

PORTLAND, Ore. — A Portland inventor is suing for patent infringement, claiming the companies behind the recognizable “As Seen On TV” products knocked off her idea. “It’s like somebody ...