OpenThread is an open source implementation of Thread, which is an open standard based on 6LoWPAN with 802.15.4 for mesh networking.
How do you force companies to play nice without regulation?
Edit: What about Zigbee? Google Home? WeMo? And new to me, Bluetooth Mesh.
Almost all the mentioned standards are based on IEEE 802.15.4.
The difference between 6LoWPAN and and the rest of the mentioned "standards": 6LoWPAN is IPv6 "adapted"/compatible. Thread is based/extends on 6LoWPAN, and adds several missing features or replaces some parts, because similar to conventional Internet devices, you need something more than IPv6 to get things going.