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JANSSEN PAUL A J

Overview
  • Total Patents
    15
About

JANSSEN PAUL A J has a total of 15 patent applications. Its first patent ever was published in 1958. It filed its patents most often in United States, Canada and Czechoslovakia. Its main competitors in its focus markets organic fine chemistry are NANJING SYNTITAN PHARMACEUTICAL CO LTD, LUXEMA SA and TEMMLER THEODOR H.

Patent filings in countries

World map showing JANSSEN PAUL A Js patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 1
#3 Czechoslovakia 1

Patent filings per year

Chart showing JANSSEN PAUL A Js patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Organic fine chemistry

Top inventors

# Name Total Patents
#1 Janssen Paul A J 15
#2 Stokbroekx Raymond A 1
#3 Niemegeers Carlos J E 1
#4 Vanderberk Jan 1

Latest patents

Publication Filing date Title
US3012030A Lower alkyl esters of 1-cinnamyl-3-methyl-4-phenylpiperidine-4-carboxylic acid
US3004977A Lower alkyl esters of 1-(2-benzoylethyl)-3-methyl-4-phenylpiperidine-4-carboxylic acid and 1-(3-hydroxy-3-phenylpropyl)-3-methyl-4-phenylpiperidine-4-carboxylic acid
US3012037A Esters of 3-methyl-4-phenyl-4-carboxypiperidine
US3000892A 1-aroylalkyl-4-aroylpiperazines
US2975182A 1-(aroylalkyl)-4-(heterocyclyl) piperazines
US3000891A 1-thenoylalkyl-4-aroylpiperazines
US2973360A Certain 1-(2-theonyl lower alkyl)-4-(heterocyclic substituted)-piperazines
US2997474A 1-aryl-omega-(4-arylpiperazine) alkanols
US3002976A 1-(2-thienyl)-omega-(4-arylpiperazine)alkanols
US2979508A Heterocyclic derivatives of 1-phenyl-omega-(piperazine) alkanols
US2985657A 1-(aroylalkyl)-4-heterocyclylpiperazines
US2973365A 1-aroylalkyl-4-aryl-1, 2, 3, 6-tetrahydropyridines
US2898340A 2,2-diaryl-omega-(4'-phenyl-1'-piperidino) alkanonitriles
CA632437A 1-aroylalkyl-4-arylpiperidin-4-ols and process