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CHANGZHOU CHANGLANG GEARBOX CO LTD

Overview
  • Total Patents
    17
  • GoodIP Patent Rank
    182,909
  • Filing trend
    ⇩ 50.0%
About

CHANGZHOU CHANGLANG GEARBOX CO LTD has a total of 17 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements, machines and measurement are JIANGSU TAILAI REDUCER CO LTD, KOCHENDOERFER & KIEP STANZ UND and Jopp Holding GmbH.

Patent filings in countries

World map showing CHANGZHOU CHANGLANG GEARBOX CO LTDs patent filings in countries
# Country Total Patents
#1 China 17

Patent filings per year

Chart showing CHANGZHOU CHANGLANG GEARBOX CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Cheng Xiangyang 17
#2 Zhang Chao 12
#3 Hu Yuexin 10
#4 Cheng Chang 3

Latest patents

Publication Filing date Title
CN112112934A High-load-sharing double-screw extruder gear box and method for adjusting phase of matched gears
CN109340353A Extruder gearbox
CN109372976A Easy-to-mount extruder gearbox
CN107701663A Injection machine special gear box
CN107672134A Injection machine all-in-one
CN106584814A Device for connecting gear box with screw extruder
CN106769019A Can real-time monitoring screw gear case
CN103629327A Counter-rotating parallel twin-screw ultrahigh-torque gearbox
CN103629332A Same-direction parallel double-screw ultra-high torque gear case
CN103591217A Medium-speed high-torque gearbox for extruder
CN103591218A Low-speed high-torque gearbox for extruder
CN103591221A Same-direction high-torque gear box
CN103591267A Reversed-triangle homonymous three-screw gear box
CN103591263A Single-screw gearbox
CN103591219A Gearbox of counter-rotating parallel twin screw extruder
CN103591268A Gear box for extruder
CN103591220A Medium speed gear box for counter-rotating parallel extruder