Patents can provide insights regarding the IoT (Internet of Things) connectivity technologies. M2M (Machine to Machine) communication or MTC (Machine Type Communication) technologies are the key enablers for emerging IoT connectivity. Recently several telecom operators are deploying LTE based M2M (LTE-M) services as a new profit center. Furthermore, several global standardization bodies including ETSI, 3GPP, oneM2M, Thread are actively working on the technical standard specifications of M2M communications.