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TONGYU HEAVY IND CO LTD

Overview
  • Total Patents
    31
  • GoodIP Patent Rank
    50,925
  • Filing trend
    ⇩ 54.0%
About

TONGYU HEAVY IND CO LTD has a total of 31 patent applications. It decreased the IP activity by 54.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets machine tools, materials and metallurgy and packaging and shipping are WUXI HTC HEAVY INDUSTRY LTD BY SHARE LTD, KALYANI BABASAHEB NEELKANTH and WUHAN HEAVY IND CASTING & FORGING CO LTD.

Patent filings in countries

World map showing TONGYU HEAVY IND CO LTDs patent filings in countries
# Country Total Patents
#1 China 31

Patent filings per year

Chart showing TONGYU HEAVY IND CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Shuai 12
#2 Yang Houlei 10
#3 Li Guorui 6
#4 Wang Yujie 6
#5 Xiao Guangshuai 6
#6 Li Wei 6
#7 Liu Chonglu 6
#8 Liu Baogang 6
#9 Liu Dianshan 5
#10 Hou Zhenguo 4

Latest patents

Publication Filing date Title
CN112247045A Forging method of shaft forging and tool for pressing groove
CN112080621A Pipe die material and post-forging heat treatment method thereof
CN111893260A Heat treatment method for wind power main shaft
CN111545730A Box opening method for megawatt high-tonnage wind power casting
CN111687247A Control method and device suitable for automatic plate rolling machine
CN111331064A Forming method of large-size plate forging
CN111270065A Heat treatment process for perforated valve box
CN110883316A In-vitro pouring conformal sand box and manufacturing method thereof
CN110756788A Application method of double-vacuum cast steel ingot tundish
CN110465631A A kind of casting anti-runout structure and joint sealing method
CN110405124A Marine full-fibre crankshaft upsetting manufacturing process and its forming device
CN109482797A A kind of High angle dish-shaped forgings spin forging process
CN109848343A A kind of abnormal shape step ring forging forming method
CN108862143A Automatic sealing cover gripping machine and application thereof for nuke rubbish steel drum
CN108356193A Rotor of steam turbo generator free forging method
CN108315535A Heat treatment process after a kind of 12Cr2Mo1V hydrogenation reactors forging
CN108160906A A kind of forging method for reducing initial forging temperature, preventing forged shaft coarse grains
CN108127413A Circular weld joint retaining wall on slope and welding equipment
CN108067657A Major diameter cylindrical part inner wall drilling hole machine tool
CN107617875A The stubborn bolt device of floating connection