The Application Deterioration is the eighteenth episode of the ninth season of The Big Bang Theory.
Synopsis[]
Howard, Leonard, and Sheldon decide to patent their idea, and Sheldon proposes a contract where they split their share three ways considering Howard isn't getting any credit. Meanwhile, Raj hears from both Emily and Claire again, and is having trouble deciding who to date, so he asks Penny, Amy, and Bernadette for advice.