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ZHANG KEWEI

Overview
  • Total Patents
    14
About

ZHANG KEWEI has a total of 14 patent applications. Its first patent ever was published in 1992. It filed its patents most often in United States, China and United Kingdom. Its main competitors in its focus markets basic materials chemistry, civil engineering and chemical engineering are FLEX CHEM HOLDING COMPANY LLC, FU DIANKUI and QUINTERO LIRIO.

Patent filings in countries

World map showing ZHANG KEWEIs patent filings in countries
# Country Total Patents
#1 United States 12
#2 China 1
#3 United Kingdom 1

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Zhang Kewei 13
#2 Wiggins Chris 2
#3 Lee Darren K 1
#4 Cao Shandong 1
#5 Orlando Antonio 1
#6 Xiuying Wang 1
#7 Kewei Zhang 1
#8 Xuemin Deng 1
#9 Crooks Elaine Craig Mackay 1
#10 Ritten Brent 1

Latest patents

Publication Filing date Title
US2012067584A1 Hydrocarbon-based fluid compositions and methods of using same
US2010197526A1 Method for making particulate slurries and particulate slurry compositions
US2010267593A1 Control of particulate entrainment by fluids
US2008011486A1 Biodegradable foam compositions for oil field operations
CN1088208A Anti-pollution process for recoverying raw berberine mother liquor salt