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LEHN & FINK INC

Overview
  • Total Patents
    19
About

LEHN & FINK INC has a total of 19 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United States, Switzerland and United Kingdom. Its main competitors in its focus markets organic fine chemistry and basic materials chemistry are JIANGSU YANGNONG CHEMICAL GROU, HUNAN GOFAR FINE CHEMICAL TECH CO LTD and ANHUI CHINAHERB FLAVORS & FRAGRANCES CO LTD.

Patent filings in countries

World map showing LEHN & FINK INCs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Switzerland 4
#3 United Kingdom 4
#4 France 1

Patent filings per year

Chart showing LEHN & FINK INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Emil Klarmann 10
#2 Fink Inc Lehn 4
#3 Gates Louis W 2
#4 William Gates Louis 2
#5 William Gatyas Louis 1

Latest patents

Publication Filing date Title
GB429361A Improvements in or relating to germicidal preparations and methods of producing the same
GB432955A Improvements in or relating to the preparation of halogen phenols
GB422219A Improvements in or relating to germicidal preparations and methods of producing the same
US1969801A Hydrocarbon substituted bromophenol
GB417785A Improvements in or relating to the manufacture of antibacterial and germicidal compounds
US1984646A Germicidal preparation
US1938912A Substituted halogen-phenols
US1938911A Substituted halogen-phenols
US2010595A Mono-alkyl-chloro-phenols
US1953413A Germicidal preparation
US1926874A Substituted polyalkyl-hydroxydiphenylmethane
US1926873A Substituted alkyl-hydroxydiphenyl methane
US1967825A Bactericidal compound
US1596613A 2, 4-dihydroxydiphenylethane and process of making it