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TANGSHAN CITY DELONG IRON & STEEL CO LTD

Overview
  • Total Patents
    38
  • GoodIP Patent Rank
    42,815
  • Filing trend
    ⇧ 12.0%
About

TANGSHAN CITY DELONG IRON & STEEL CO LTD has a total of 38 patent applications. It increased the IP activity by 12.0%. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, machine tools and environmental technology are ZENITH STEEL GROUP CO LTD, Changshu longteng special steel co ltd and BAOWU GROUP ECHENG IRON AND STEEL CO LTD.

Patent filings in countries

World map showing TANGSHAN CITY DELONG IRON & STEEL CO LTDs patent filings in countries
# Country Total Patents
#1 China 38

Patent filings per year

Chart showing TANGSHAN CITY DELONG IRON & STEEL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liang Peng 24
#2 Chen Zhiguo 10
#3 Liu Tao 9
#4 Shi Binghua 9
#5 Dong Zhicai 9
#6 Feng Runzhuang 9
#7 Ma Xiaochen 8
#8 Mei Zhong 8
#9 Liu Kun 7
#10 Liu Chunsen 7

Latest patents

Publication Filing date Title
CN111854575A Roll collar ring groove detection device
CN111593165A Maintenance method for converter lining
CN111159952A Method for reducing rough rolling wrinkles of bar and wire
CN111020355A Submerged arc welding wire steel for low-alloy steel plate and preparation method thereof
CN111100970A Submerged arc welding wire steel for welding low-temperature steel plate and preparation method thereof
CN110976516A Rolling method for eliminating roll marks on surface of hot-rolled strip steel
CN110935735A Production mode for improving duplex high-wire heat delivery rate of steel billets
CN110792696A Roller way water-cooling bearing seat
CN110882616A Sintering flue gas low temperature integration SOx/NOx control system
CN110804716A Hot-rolled strip steel for building template pull sheet and preparation method thereof
CN110465551A A kind of segmented spinneret of wire stock pistol
CN110205560A A kind of low carbon steel plate welding steel slab and its production method
CN110241356A A kind of welding wire gren rod and preparation method thereof
CN109940043A A kind of preparation method of easy pickled hot strip
CN109371186A A kind of coal powder injection apparatus of blast furnace and its automatically switch anti-unimpeded method
CN109487026A A kind of novel blast-furnace pressure equalizing blow off valve package assembly and its operating method
CN109321730A A kind of mill coil and its preparation method and application of household motor rotor/stator
CN109332379A A kind of stamping parts mill coil and its preparation method and application
CN109536848A A kind of fan blade mill coil and preparation method thereof
CN109112428A A kind of production method of low thickness oxide skin steel wire for welding