I found http://answers.onstartups.com/questions/19422/if-im-working-at-a-company-do-they-have-intellectual-property-rights-to-the-st which seems to have a lot of good discussion. Like you say, it looks like Ca is very pro-competition/pro-individual-inventor. Re: pre-existing obligations. Yeah, looks like that's something I'll need to do -- enumerate everything that I have worked on and what I plan to work on as a "prior invention", just to cover my bases. It seems that even non-compete clauses are not regularly enforced in Ca. I may ask them to modify parts of it, maybe just sprinkle lots of "To my knowledge", "except in relation to...", and "with prior notice", per http://faif.us/cast-media/FaiF_0x0D_NDAs.odp . If they don't budge, I may just sign it anyway since it seems Ca will partially protect me. If you do think it would be wise for me to seek legal advice, I would welcome the names of any friendly IP lawyers. Thanks. > From: Jeremiah Lee <http://www.gmail.com/~jeremiah.lee> > Date: Wed, 7 Mar 2012 18:14:46 -0800 > > Hey Robert, > > Just a standard disclaimer first: > > While I am an attorney, I am not _your_ attorney and the following should > not be construed as legal advice. If you believe you need legal advice, you > should seek professional counsel. > > http://ocpatentlawyer.com/assignments-of-inventions-by-former-employees/relates > to patents and talks about Ca being very pro-competition. > > I've had open source software out there for the last 10 years and when I've > signed on with new employers, I've just noted those as preexisting > obligations. > > Do some searching on assignment of invention and copyright work-for-hire in > Ca. > > Sorry for being a little weird, I just need to make sure I don't really > give out legal advice. > > Thanks, > > -jeremiah