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SHANDONG LANGHUI PETROCHEMICAL CO LTD

Overview
  • Total Patents
    19
  • GoodIP Patent Rank
    86,586
About

SHANDONG LANGHUI PETROCHEMICAL CO LTD has a total of 19 patent applications. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, organic fine chemistry and mechanical elements are SK GAS CO LTD, ZHEJIANG QUZHOU JUXIN FLUORINE CHEMICAL CO LTD and VULCAN CINCINNATI INC.

Patent filings in countries

World map showing SHANDONG LANGHUI PETROCHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 19

Top inventors

# Name Total Patents
#1 Li Leqin 6
#2 Wei Lezhao 5
#3 Wang Meixia 4
#4 Zhang Xianpeng 4
#5 Sun Shuqun 4
#6 Zhang Ke 4
#7 Yuan Zhenhua 3
#8 Zuo Sujuan 3
#9 Liu Yanhua 3
#10 Sun Feng 3

Latest patents

Publication Filing date Title
CN112254775A Method for monitoring gas-liquid two phases of mass flowmeter
CN112271466A Method for eliminating instrument signal interference
CN112268163A Method for preventing cold water corrosion
CN112209824A Production method of citric acid mixed ester
CN112254002A Chloroethylene monomer tank car sampling VOC control and treatment system
CN112223582A Method and equipment for defoaming PVC (polyvinyl chloride) paste resin
CN112169237A Fire water system salvagees emptying devices
CN112278551A Polyvinyl chloride paste resin distillation and extraction analysis system and equipment
CN111804014A Separation device for improving production quality of ATBC (automatic transfer control) and TBC (TBC)
CN111841061A Be applicable to environment chloroethylene drainage equipment in winter
CN111821937A Be applicable to PVC paste resin safety in production equipment
CN111701550A Automatic esterification heating system
CN111729865A Compound weighing and rejecting system suitable for packaging line
CN111729635A Energy-saving DOTP apparatus for producing
CN111732510A Continuous production equipment and process for DOTP plasticizer
CN111704522A Chloroethylene liquid phase dehydration system
CN111574364A Production process for improving DOTP esterification reaction
CN111459119A Metering delivery control system
CN111606802A DOTP esterification automatic operation process