Inventor

YANG DONGFENG

CN3 patents

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

QINHUANGDAO TONGQIAO TECH CO LTD

1 patent

US11801653B2Oct 31, 2023

Special hydraulic press for bulging pressing forming of automobile axle housing and pressing forming method

QINHUANGDAO TONGQIAO TECH CO LTD0 citations35

LUOYANG JIANGUANG SPECIAL EQUIPMENT CO LTD

1 patent

US9458382B2Oct 4, 2016

Top drive mechanism for drill rod

LUOYANG JIANGUANG SPECIAL EQUIPMENT CO LTD0 citations30

JIAXING HONGYU TECH CO LTD

1 patent

US11848165B2Dec 19, 2023

Ceramic reed switch

JIAXING HONGYU TECH CO LTD0 citations27