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POLAK & SCHWARZ S ESSENCEFABRI

Overview
  • Total Patents
    60
About

POLAK & SCHWARZ S ESSENCEFABRI has a total of 60 patent applications. Its first patent ever was published in 1941. It filed its patents most often in France, Switzerland and United Kingdom. Its main competitors in its focus markets organic fine chemistry, basic materials chemistry and chemical engineering are WEIHAI HANFU BIOCHEMICAL PHARMACEUTICAL CO LTD, WUHAN YOUJI IND CO LTD and QIANJIANG YONGAN PHARMACEUTICAL CO LTD.

Patent filings in countries

World map showing POLAK & SCHWARZ S ESSENCEFABRIs patent filings in countries

Patent filings per year

Chart showing POLAK & SCHWARZ S ESSENCEFABRIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Beets Dr Muus Gerrit Jan 6
#2 Essencefabrieken N V Polak Sch 6
#3 Essen Harm Van 4
#4 Meerburg Wilhelmina 4
#5 Jan Beets Muus Gerrit 4
#6 Alexander Drukker Emanuel 3
#7 Emanuel Alexander Drukker 2
#8 J Dr Beets Muus G 2
#9 Drukker Drs Emanuel Alexander 1
#10 Essencefabrieken Nv Polak Schw 1

Latest patents

Publication Filing date Title
GB809186A A process of preparing unsaturated aromatic halogen compounds
FR1174218A Process for preparing omega-halo-styrenes or their homologues
DE1037623B Fragrance
GB812727A A new process for the preparation of pseudo isomethyl ionone and the isomethyl ionones
FR1148970A Process for the preparation of novel substances having an odor and flavor of musky character
DE1037622B New indane derivatives as fragrances and aromas
GB793555A A process for the preparation of macrocyclic lactones
GB803120A Improvements in the preparation of keto acids
DE1025861B Process for the preparation of macrocyclic lactones
DE1029817B Process for the production of ª € -ketocarboxylic acids or ªÏ-oxy-ª € -ketocarboxylic acids
FR1135304A Process for preparing ketonic acids
FR1146541A Process for preparing macrocyclic lactones
DE1029342B Filler for fractionating columns
US2823238A Process of preparing 2-phenylethanol-1
FR1120496A Process for the preparation of aromatic carbonyl compounds from arylethylenes
FR1082816A Process for the preparation of styrene halohydrins and their homologues
FR1082815A New process for the preparation of omega-bromostyrene or its homologues
DE1016697B Process for the production of ªÏ-bromostyrene and its homologues
DE1013277B Process for the preparation of halohydrins of styrene and methyl styrene
US2763695A Process for the preparation of styrene chlorohydrin and styrene bromohydrin