Inventor

DONG HONGJIANG

CN2 patents

⚠️ This page may combine multiple inventors who share the name “DONG HONGJIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HUAWEI DIGITAL POWER TECH CO LTD

1 patent

US12198884B2Jan 14, 2025

Direct current contactor with moving and fixed contact components located within an arc-extinguishing cavity

HUAWEI DIGITAL POWER TECH CO LTD0 citations43

CHANGZHOU RUIHUA CHEMICAL ENGINEERING TECH CO LTD

1 patent

US12372231B2Jul 29, 2025

Device and method for producing high-pressure or super high-pressure steam as byproduct from maleic anhydride producing device

CHANGZHOU RUIHUA CHEMICAL ENGINEERING TECH CO LTD0 citations41