I have successfully gotten a clause like this changed or adjusted in a large corporation twice. Both times I signed first, then raised an issue in an email whic

I have successfully gotten a clause like this changed or adjusted in a large corporation twice. Both times I signed first, then raised an issue in an email which was intended to be forwarded to the lawyers. My email included specific, detailed objections ("as written, this means that the company owns the bedtime stories I make up for my children") and proposed alternate language ("We could, for instance, replace the clause 'all intellectual property' with 'all intellectual property related to the company's business or produced using company resources'."). In one case, an international company with a couple-thousand employees in the US, the company lawyers never got back to me, but the next year the contract was changed and it included a variation of my original proposed language. In the other case, a US company with tens of thousands of employees, the company lawyers got back to me immediately with a statement about how they intended the existing language to be interpreted (and this addressed my concerns). I can't promise you will get the same results, but I thought it was worth sharing my anecdotes.