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ZHANG JINGSAN

Overview
  • Total Patents
    11
About

ZHANG JINGSAN has a total of 11 patent applications. Its first patent ever was published in 2005. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are KANAE TORYO KK, HUBEI KAIYIYUAN ENVIRONMENTAL PROTECTION TECH CO LTD and NOUGIYOU KIKAIKA KENKIYUUSHIYO.

Patent filings in countries

World map showing ZHANG JINGSANs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing ZHANG JINGSANs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Zhang Jingsan 11

Latest patents

Publication Filing date Title
CN103657499A Culm and chip mixing method and special equipment thereof
CN103666520A Method for producing hydrocarbon fuel oil by utilizing vegetable oil
CN103539115A Method for producing carbon fiber with castor seed shells and castor straws as raw materials
CN103497220A Production technology of sodium humate
CN103131442A Preparing method for high-calorific-value charcoal
CN103143448A Method for extracting float coal, ferrous sulfide and kaoline from gangue through flotation
CN1676869A Oil-extracting well water injection method
CN1673706A Petroleum pipeline leakage monitoring method
CN1686851A Method for treating sewage containing crude oil
CN1673713A Method for extracting underground hydrocarbon sour rock in oil field prospecting
CN1651671A Domestic waste water secondary utilization device