上海真兰仪表申请适用于多用户场景的物联网燃气表及燃气表控制方法专利，改善现有的物联网燃气表查看浪费时间和人力的问题

Group 1 - The company Shanghai Zhenlan Instrument Technology Co., Ltd. has applied for a patent for an "IoT gas meter and control method suitable for multi-user scenarios" with publication number CN 119756514 A, filed on January 2025 [1] - The patent involves a gas meter technology that allows multiple gas meters to be housed within a single shell, improving efficiency by eliminating the need for staff to individually check each household's gas usage [1] - The design includes features such as a mechanical counter, an electronic counter, and a protective structure, enhancing the functionality and safety of the gas meter [1] Group 2 - Shanghai Zhenlan Instrument Technology Co., Ltd. was established in 2011 and is primarily engaged in the manufacturing of instruments and meters [2] - The company has a registered capital of 408.8 million RMB and a paid-in capital of 292 million RMB [2] - The company has made investments in 15 enterprises, participated in 811 bidding projects, and holds 257 patents along with 39 trademark registrations [2]