Learn more

XIANGTAN HONGDA VACUUM TECH CO LTD

Overview
  • Total Patents
    62
  • GoodIP Patent Rank
    24,877
  • Filing trend
    ⇩ 100.0%
About

XIANGTAN HONGDA VACUUM TECH CO LTD has a total of 62 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets surface technology and coating, environmental technology and semiconductors are DALIAN BE TRUST ENVIRONMENTAL PROT SCIENCE & TECHNOLOGY CO LTD, WUXI LUOSHE TECHNOLOGY VENTURE CO LTD and TAKATANI MATSUFUMI.

Patent filings in countries

World map showing XIANGTAN HONGDA VACUUM TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 62

Patent filings per year

Chart showing XIANGTAN HONGDA VACUUM TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhu Haisheng 60
#2 Huang Guoxing 59
#3 Sun Guihong 59
#4 Huang Le 58
#5 Chen Li 55
#6 Ling Yun 53
#7 Huang Xia 50
#8 Liang Hong 8
#9 Tang Lian 7
#10 Tang Hongbo 6

Latest patents

Publication Filing date Title
CN112281134A Double-chamber high-efficiency film coating machine
CN112281127A Bearing device for magnetron sputtering coating machine
CN112080731A Multi-chamber continuous optical film coating machine
CN110760808A Curved surface screen magnetron sputtering subassembly
CN110643968A Substrate transportation transmission device for horizontal vacuum coating production line
CN110735123A Control method of coating production line
CN110699654A ARC coating production line and coating process
CN110699655A DLC continuous coating production line and coating process
CN112281122A Gradient color coating machine and coating method thereof
CN109930117A Ion plating film device
CN109930116A Optics multi-Arc Ion Plating
CN109927321A FLA coating apparatus
CN109930115A Optics multi-arc ion coating method and device thereof
CN109957771A Hand-set lid color film horizontal film coating production line
CN109957761A Based on linear evaporator vacuum coating uniset
CN109957767A Transmission rotating device for double-sided glass plated film
CN109957778A Transmission rotating device for double-sided glass plated film
CN109957782A Mobile phone glass cover board metal flag vacuum coating production line
CN109957770A Vehicle glass continuous coating production line
CN109957769A Arc glass vacuum magnetron sputtering coating film production line