This paperwork is standard. The company wants to protect itself against a scenario in which you, after being steeped in its business, come up with some way to do it better/more efficiently/cheaper but claim the idea came to you while you were at home in the shower and thus they have no rights to it. Your out is the form that lists the 'inventions' you might have that you want excluded from this clause. You can always add to it later, too, should you come up with something that is unrelated to your employer's business that you want to work on yourself as long as you and the employer can agree it doesn't interfere with your full-time duties as an employee. Usually, all of this is a formality - just keep the paperwork up to date when needed. I don't think your new employer is trying to screw you.