Learn more

HUBEI YIHUA CHEMICAL INDUSTRY CO LTD

Overview
  • Total Patents
    20
  • GoodIP Patent Rank
    223,831
About

HUBEI YIHUA CHEMICAL INDUSTRY CO LTD has a total of 20 patent applications. Its first patent ever was published in 2006. It filed its patents most often in China and Brazil. Its main competitors in its focus markets environmental technology, organic fine chemistry and chemical engineering are BEIJING ENZE FULAI TECHNOLOGY CO LTD, UFIM Z SINT SPIRTA IM 40 LETIY and BEIJING RISUN CHEMICALS TECHNOLOGY RES CO LTD.

Patent filings in countries

World map showing HUBEI YIHUA CHEMICAL INDUSTRY CO LTDs patent filings in countries
# Country Total Patents
#1 China 19
#2 Brazil 1

Patent filings per year

Chart showing HUBEI YIHUA CHEMICAL INDUSTRY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yang Xiaoqin 6
#2 Jiang Yuanhua 5
#3 Lu Guangsheng 4
#4 Fang Yalan 4
#5 Huang He 3
#6 Li Qiang 3
#7 Bian Pingguan 3
#8 Huang Zhiliang 2
#9 Gao Jian 2
#10 Zhong Xinli 2

Latest patents

Publication Filing date Title
CN104689678A Method for treating synthesis ammonia tail gas and extracting LNG
CN103933825A Device and process for recycling reversely-released gas of PSA (Primary Secondary Amine) purification section to refinement section
CN103450001A Method and equipment for concentrating sodium formate in pentaerythritol production
CN103601214A Novel technology of recovering hydrogen and non-power ammonia in ammonia synthesis purge gas
CN103418211A Process and device for heat utilization of high-pressure temperature-regulation water in shell side of high pressure scrubber in production in urea steam stripping method
CN103435067A Novel process equipment for conversion section of small-scale ammonia synthesis plant
CN103482585A Method and device for synthesizing sodium hydrosulfite
CN103058146A Method for recycling residues of sodium dithionite
CN103044199A Phosphoric acid hydrolysis method in pentaerythritol production
CN103848123A Overflow device of acetylene sludge slurry head tank
CN103848721A Aldehyde removal apparatus of pentaerythritol
CN103849435A Gas leakage resistant gas making furnace bottom water seal apparatus
CN103849886A Caustic soda electrolytic cell cooled by utilizing pure water heat exchange
CN102559268A Fixed bed batch high-temperature slag coal gasification device and method
CN102530863A Device and method for sectionally and regionally preparing synthetic ammonia syngas in intermittent static bed
CN102408283A Urea slow release fertilizer and its preparation method
CN102152887A Combustible powder packing, storing and conveying device and method
CN101551378A Method and equipment for detecting oxygen content in coal gas
CN101550359A On-line valve pressurization method by steam