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DONGGUAN HUICHENG VACUUM TECH CO LTD

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    94,054
  • Filing trend
    ⇩ 50.0%
About

DONGGUAN HUICHENG VACUUM TECH CO LTD has a total of 18 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets surface technology and coating, electrical machinery and energy and chemical engineering are INGDAO DACHENG RIGGING & HARDWARE MFG CO LTD, DAIICHI METEKO KK and MAIZURU KK.

Patent filings in countries

World map showing DONGGUAN HUICHENG VACUUM TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 18

Patent filings per year

Chart showing DONGGUAN HUICHENG VACUUM TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Zhirong 18
#2 Feng Xiaoting 7
#3 Pan Ruihua 7
#4 Wei Yanling 6
#5 Lu Chuangcheng 5
#6 Luo Zhiming 5
#7 Li Zhifang 4
#8 Liu Jiangjiang 4
#9 Chen Si 3
#10 Li Yingchun 3

Latest patents

Publication Filing date Title
CN111334752A Method for preparing CrCN thin film
CN111058010A Metal foil strip winding type vacuum coating equipment
CN111058009A Metal foil strip winding type vacuum coating continuous production line
CN110295351A A kind of coating machine that target body being isolated by convertible target door
CN110230033A A kind of coating machine that target body being isolated by parallel-moving type target door
CN109797363A A kind of arc light electron source assisting ion nitriding process
CN109913799A A kind of PVD plated film arc light electron source enhancing glow discharge surface activating process
CN109576653A Workpiece rotating frame and coating machine for hemispherical shell workpiece plated film
CN109539746A A kind of lithium battery contact heating vacuum tunnel baking line
CN109161866A A kind of vacuum coating equipment
CN108085640A Large tank inner wall plated film vacuum cathode arc coating machine
CN108085646A A kind of large tank inner wall plated film vacuum cathode arc coating machine
CN107858654A The drive system of large tank inwall plated film vacuum cathode arc coating machine electric arc source component
CN107858653A A kind of electric arc target lifts head-lifting mechanism
CN107083533A A kind of dripless multi sphere evaporating and ionizing source structure
CN107309476A Micro-nano hollow diamond bit and preparation method thereof
CN105758186A Entrance/exit end door of continuous vacuum production line
CN105603377A Vacuum plating workpiece rotating stand motion mechanism allowing speed to be adjusted independently during revolution and autorotation