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CHANGZHOU YAHUAN ENVIRONMENTAL PROT TECHNOLOGY CO LTD

Overview
  • Total Patents
    241
  • GoodIP Patent Rank
    10,956
  • Filing trend
    ⇩ 100.0%
About

CHANGZHOU YAHUAN ENVIRONMENTAL PROT TECHNOLOGY CO LTD has a total of 241 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets basic materials chemistry, macromolecular chemistry and polymers and environmental technology are GUO YINGQING, FOSHAN WANYANG BIOLOGICAL TECH CO LTD and WU DI.

Patent filings in countries

World map showing CHANGZHOU YAHUAN ENVIRONMENTAL PROT TECHNOLOGY CO LTDs patent filings in countries
# Country Total Patents
#1 China 241

Patent filings per year

Chart showing CHANGZHOU YAHUAN ENVIRONMENTAL PROT TECHNOLOGY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gao Yumei 123
#2 Siyu Lei 87
#3 Chunsheng Lei 87
#4 Lei Chunsheng 24
#5 Lei Siyu 24
#6 Xue Lei 22
#7 Haiyan Long 20
#8 Xu Hongxiang 17
#9 Zou Yu 15
#10 Lijun Jin 15

Latest patents

Publication Filing date Title
CN106927639A A kind of ecological treatment system of acidic mine waste water
CN106693967A Preparation method of catalyst for promoting degradation of ammonia-nitrogen wastewater at normal temperature and normal pressure
CN106684336A Preparation method for high-combination degree lithium battery carbon silicon anode material
CN106693925A Preparation method of saturation self-falling-off ammonia-nitrogen wastewater adsorbent
CN106669298A Explosion-proof bag rotating type dust collecting device
CN106833812A A kind of preparation method of high base number detergent for lubricating oil
CN106869988A A kind of preparation method for preventing spontaneous combustionof coal retardant
CN106366676A Preparation method of anti-aging and cold cracking resistance asphalt
CN106421930A Preparation method of nonirritating artificial skin
CN106495641A A kind of preparation method of automatically cleaning composite artificial shone material
CN106520288A Preparation method of low temperature resistant automobile brake fluid
CN106508972A Preparation method of environment-friendly insecticide
CN106495741A A kind of preparation method of long-acting lithotome protective agent
CN106497003A A kind of preparation method of high resiliency conducting foam
CN106520388A Method for preparing environment-friendly woody floorboard detergent
CN106380980A Preparation method of long-acting crack-proof really stone paint
CN106518888A Bio-extraction method of high-purity artemisinin
CN106518325A Preparation method for long-acting soil conditioner
CN106634733A Method for preparing plate alignment adhesive free of residual gel
CN106520290A Preparation method of high-antioxidant transformer oil