To be honest, this sounds like a perfectly normal contract. The larger company quite reasonably wants not to have the employees of its 19 acquisitions to each all have completely different paperwork.
Personally, I find that the easiest way to deal with prior inventions paperwork is to list all of your prior inventions in semi-specific ways. In a previous company, I listed my prior inventions as "a search hosting platform, with associated technical and business processes."
So hypothetically, if BigCo wants to be nasty about a nifty billing trick I told them about (which I had used previously), I can say: "I disclosed that as a prior invention: it was an 'associated business process' I mentioned."
But really, the IP/inventions stuff almost never matters to employees, especially at larger companies. If your previous inventions were so amazing, why did you get a day job doing something else?
Personally, I find that the easiest way to deal with prior inventions paperwork is to list all of your prior inventions in semi-specific ways. In a previous company, I listed my prior inventions as "a search hosting platform, with associated technical and business processes."
So hypothetically, if BigCo wants to be nasty about a nifty billing trick I told them about (which I had used previously), I can say: "I disclosed that as a prior invention: it was an 'associated business process' I mentioned."
But really, the IP/inventions stuff almost never matters to employees, especially at larger companies. If your previous inventions were so amazing, why did you get a day job doing something else?