- covers a method of controlling an environmental control system from a remote to adjust the settings of the system - I'm not 100% certain, but I really wouldn't be surprised if there were products that did this before that patent was filed. I don't know when Honeywell actually first released a product with such a feature, but if they weren't the first I assume this could be argued.
I don't know when that patent was filed, but one of our buildings at school (in Prescott, AZ) (early 90s) had it's temperature controlled from Phoenix. I wouldn't be surprised if that was a Honeywell system, though.