Perhaps you'd share?
You know, like a copy of the patent? Or a link?
You don't thing Freon was banned because of global warming, do you?
r-12 was and is the best "freon", they had to market an older version of the formula 134a because they couldn't improve r-12 into a better product.
134a sucks, that's why they didn't market it when they had a better product r-12 way back when.