Learn more

CHANGZHENG ENGINEERING CO LTD

Overview
  • Total Patents
    81
  • GoodIP Patent Rank
    22,652
  • Filing trend
    ⇩ 68.0%
About

CHANGZHENG ENGINEERING CO LTD has a total of 81 patent applications. It decreased the IP activity by 68.0%. Its first patent ever was published in 2008. It filed its patents most often in China, Australia and EPO (European Patent Office). Its main competitors in its focus markets basic materials chemistry, thermal processes and materials and metallurgy are FREIBERG BRENNSTOFFINST, CORTUS AB and KLEPPER ROBERT E.

Patent filings per year

Chart showing CHANGZHENG ENGINEERING CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Jiang Congbin 31
#2 Xin Wei 25
#3 Li Honghai 23
#4 Guo Jinjun 23
#5 Gao Ruiheng 22
#6 Li Xiaofei 18
#7 Chen Yongjin 17
#8 Zhang Yan 15
#9 Ma Dong 15
#10 Zhang Xuezhi 11

Latest patents

Publication Filing date Title
CN112280595A Gasification reaction furnace
CN112213993A Control system and method based on cloud
CN112185609A Liquid cable
CN112143529A Gasification furnace operation control method and device
CN112113069A Steel beam support and preparation method thereof
CN112112189A Foundation bolt fixing mechanism
CN112023550A Dust-containing steam purification device
CN112011370A High-temperature gas rapid cooling device
CN112010450A System and method for treating coal gasification grey water
CN111908538A Wastewater treatment device and method
CN111841058A Liquid inlet anti-impact assembly and flash evaporation device
CN111854477A Cooling device
CN111826202A Multi-nozzle gasification furnace
CN111792382A Multi-piece plunger type powder pressurizing and conveying device
CN111747471A Black water treatment equipment
CN111606056A Pulling type powder pressurizing and conveying device
CN111606053A Rotary powder pressurizing and conveying device
CN111517916A Method for producing ethylene glycol from coal
CN111514876A Catalyst for preparing ethylene glycol and application thereof
CN111288168A Multi-stage noise reduction cage type regulating valve