After reviewing the products listed, they are still not 100% effective. Several people claim that the OP sacks are not effective, and break their seal relatively easily. The Ursack seems to be an anti tear style bag, and as far as odor proof, not sure how effective it is.
I've conducted some tests, and so far is is effective against mountain lions, panthers, and raccoons. I'll have to find out how bear resistant it is though. My results are promising, and I'll continue to develop the technologies further.