Hangzhou Donghua Chain Group Co., Ltd.

China


 
Total IP 15
Total IP Rank # 101,817
IP Activity Score 1.8/5.0    10
IP Activity Rank # 90,475
Dominant Nice Class Machines and machine tools

Patents

Trademarks

1 3
0 1
5 2
3
 
Last Patent 2025 - High wear-resistant conveyor chain
First Patent 2018 - Chain intelligent pre-tensioning...
Last Trademark 2021 - DONGHUA
First Trademark 2001 - DONGHUA

Industry (Nice Classification)

Latest Inventions, Goods, Services

2024 Invention High wear-resistant conveyor chain. A high wear-resistant conveyor chain, comprising a plurality ...
Invention Continuously variable transmission chain and chain transmission system of continuously variable t...
2023 Invention Forming process for corn reel chain accessory. The present invention relates to the field of chai...
Invention Silent chain and chain transmission system. The present invention relates to the field of chains....
2021 G/S Transmission chains for land vehicles; driving chains for land vehicles; gearing for land vehicl...
2020 G/S Driving chains other than for land vehicles; Bearings [parts of machines]; Gears, other than for ...
2018 Invention Chain intelligent pre-tensioning and chain length detection method and device thereof. The disclo...
Invention Method for performing intelligent pre-stretching on chain and detecting length of chain and devic...
2016 G/S [ Agricultural seed planting machine; Bearings, as parts of machines; ] Driving chains other than...
G/S [Agricultural seed planting machine; Bearings, as parts of machines;] Driving chains other than f...
2015 G/S Driving chains other than for land vehicles; Bearings [parts of machines]; Transmission chains ot...
2003 G/S Driving chains other than for land vehicles, transmission chains other than for the land vehicles...
G/S Driving chains and transmission chains other than for land vehicles namely roller chains, bushing...
2001 G/S Driving chains other than for land vehicles; transmission chains other than for land vehicles. M...