1. Submersible pressure relief inlet pipe: application number/patent number: 21225955.
2. Inclined pressure-relief water inlet pipe: application number/patent number: 21225938.
3. Reversible three-dimensional heating pipe: application number/patent number: 21225944.
4. Patent of space capsule series appearance: application number/patent number: 21352465.
5. Bozhi series appearance patents: application number/patent number: 21352482.
6. patent for water outlet flow blocking structure of water inlet pipe of a new electric water heater: application number/patent number: 21268417
7. installation bracket of a new wall-mounted water heater: patent number ZL212694585.9.