I signed away all IP rights to Teledyne (my second job) in 1980. I've worked for three companies since then, and never had to sign anything like that. I'm pre

I signed away all IP rights to Teledyne (my second job) in 1980. I've worked for three companies since then, and never had to sign anything like that. I'm pretty sure it's unenforceable, but the thing I signed basically said that anything I invent from that point forward, even after leaving Teledyne, would belong to them.