Patent certificates
Dual-Orifice Wide-Range DP Technology — Invention Patent
Grant record
- Document no.
- ZL 2025 1 0551686.1
- Scope
- Invention-patent grant titled ‘A Differential-Pressure Measurement Device’, supporting Shizhong's dual-orifice wide-range flowmeter development.
- Validity
- Granted 26 Sep 2025; current legal status should be checked against the official patent register.
Applicability boundary
The certificate records a grant at the publication date. Current legal status must be checked in the official patent register, and a patent grant does not by itself establish product performance or model approval.