One thing has become clear over the past few months: Google (GOOG) doesn’t see its Glass headset as a novelty item but as a potential technological hub capable of performing several important applications and functions. Engadget has spotted a new Glass-related patent on the U.S. Patent and Trademark Office website showing that Google wants to give Glass the ability to control household appliances such as refrigerators and garage doors. Engadget writes that Glass could eventually use “visual identification, RFID, infra-red, Bluetooth and even QR codes as methods for recognizing controllable devices,” meaning it will be able to interact with just about any device or appliance that has a wireless sensor.