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NANJING FEIYAN PISTON RING CO LTD

Overview
  • Total Patents
    28
  • GoodIP Patent Rank
    146,394
  • Filing trend
    ⇧ 600.0%
About

NANJING FEIYAN PISTON RING CO LTD has a total of 28 patent applications. It increased the IP activity by 600.0%. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets machine tools, materials and metallurgy and surface technology and coating are SHENYANG LIMING INT POWER INDUSTRY CO LTD, BRYANSKIJ Z IRRIGATSIONN MASH and IVANOVSKIJ G UNIV IM PERVOGO V.

Patent filings in countries

World map showing NANJING FEIYAN PISTON RING CO LTDs patent filings in countries
# Country Total Patents
#1 China 28

Patent filings per year

Chart showing NANJING FEIYAN PISTON RING CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cao Cunjun 6
#2 Huang Daifeng 5
#3 Wu Lilai 5
#4 Liu Zhihua 5
#5 Lu Jinping 4
#6 Zhang Guibin 4
#7 Yi Zhang 4
#8 Zheng Zhaogang 3
#9 Xu Xingnan 2
#10 Tao Dianxin 2

Latest patents

Publication Filing date Title
CN108637223A A kind of piston ring monomer blank stack casting automatic shakeout system
CN108723304A A kind of automatic stacked box system of piston ring monomer blank moulding
CN108723262A A kind of delineation type piston ring helical supporting spring processing method
CN108453171A A kind of full-automatic expanding device of piston ring
CN108677152A A kind of piston ring surface chromium, graphite mixed coating preparation method
CN108655673A The negative oval steel compression ring preparation method of one kind
CN108359938A A kind of piston ring surface super thick DLC film coating production
CN107059003A A kind of method for reducing fretting wear between piston ring and cylinder sleeve
CN104858484A Machine for automatically milling gap of piston ring
CN104962839A Piston ring material high in wear resistance, fracture resistance, and hardness
CN103785781A Technology for manufacturing sealing piston ring of nuclear reactor control rod hydraulic driving mechanism
CN103790803A Brake pump piston ring of car air compressor
CN103670779A Sealing piston ring applicable to exhaust pipe of supercharged diesel engine
CN103670778A Piston ring assembly used for reciprocation piston type ignition engine
CN103894732A Laser micro-texturing method of piston ring
CN103495776A Automatic interior angle chamfering machine of piston ring
CN103451690A Method for galvanizing treatment of spring lined in piston ring
CN102777281A Stacking composite coating piston ring and manufacturing method thereof
CN102776465A Method for applying amorphous nano materials to excircle of piston ring
CN102513511A Eccentric runner piston ring molding device