Legal status check of 3 utility model patents
On September 19, 2026, we verified the patents one by one through the public data of the State Intellectual Property Office.
Verification results
| Patent No. | Name | Authorization date | State |
|---|---|---|---|
| ZL202020410866.0 | A fresh-keeping refrigerator for poultry eggs | 2021-01-15 | Authorization · Valid |
| ZL202020703426.4 | Convenient rapid freezing device | 2021-01-22 | Authorization · Valid |
| ZL202020911502.0 | A temperature switch with anti-freeze defrosting function for refrigeration equipment | 2021-01-15 | Authorization · Valid |
All three patent applicants are Kunshan Lanhai Yunchuang Electronic Technology Co., Ltd. The expiration dates are expected to be March, April and May 2030, respectively.
Technical direction
The three patents correspond to the three directions of cold storage preservation, rapid freezing and refrigeration control components, which are directly related to the company's cold storage project, quick freezing equipment and refrigeration product line.
Software Copyright Synchronization Instructions
In addition to patents, the company's registered intelligent cold-room monitoring system has obtained 7 computer software copyright registrations (registration No. 2021SR0158110 and others), covering remote monitoring and alarm, over-temperature alarm, energy monitoring and data acquisition. Patent and software copyright information can be publicly verified in the corresponding official systems.