Learn more

NL COMBINATIE CHEM IND

Overview
  • Total Patents
    138
About

NL COMBINATIE CHEM IND has a total of 138 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United Kingdom, Canada and Germany. Its main competitors in its focus markets organic fine chemistry, machines and pharmaceuticals are ANHUI QINGYUN PHARMACEUTICAL AND CHEMICAL CO LTD, ROGER ADAMS and MASTEAM BIO TECH CO LTD.

Patent filings in countries

World map showing NL COMBINATIE CHEM INDs patent filings in countries
# Country Total Patents
#1 United Kingdom 23
#2 Canada 19
#3 Germany 18
#4 France 15
#5 Switzerland 14
#6 United States 13
#7 Austria 12
#8 Spain 6
#9 Belgium 5
#10 Denmark 5
#11 Finland 4
#12 Brazil 2
#13 Sweden 2

Patent filings per year

Chart showing NL COMBINATIE CHEM INDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Akkerman Antony M 13
#2 Michels Josephus Franciscus 10
#3 Akkerman Antony Marie 9
#4 Leeuwen Geertruida Cornelia Va 9
#5 Michels Josephus F 8
#6 Jongh David K De 7
#7 Jongh David Karel De 7
#8 De Jongh David Karel 6
#9 Leeuwen Geertruida C Van 5
#10 Janssen Paul 5

Latest patents

Publication Filing date Title
GB1128833A Improvements in or relating to chlorhexidine complexes and to germicides containing them
GB1122244A Phosphorus-containing substituted bisphenols and compositions containing them and other substituted bisphenols
GB1097552A Improvements in or relating to halogen-containing 2,2'-methylenediphenols and methods of preparing the same
GB1021959A Improvements in or relating to compositions comprising cinnarizine and cyclizine or chlorocyclizine
GB1021397A Pyrazineacetonitriles and methods of preparing them
GB1021398A Substituted dicarboxylic acid imides and method of preparing same
GB1001229A Phosphorous containing derivatives of hexachlorophene
GB1025911A Improvements in and relating to cyclized ªÊ-carboxybenzene-sulfonic acid derivativesand method of preparing the same
US3192211A 5-phenyl-5-(2-pyrazyl)-hydantoin
GB1012243A Improvements in and relating to bisphenols
GB1012244A Improvements in or relating to anthelmintic compositions
US3239520A N-(monocarbocyclic aryloxy-lower alkyl)-n' (diloweralkyl, or heterocyclic)-lower alkylene diamines
GB998828A Improvements in or relating to the preparation of alpha-3,4-dichlorophenyl-alpha-methoxyacetic acid and intermediates in the production thereof
GB1036271A New tertiary aryloxyalkylaminoalkylamines and their manufacture
GB1036272A Tertiary aryloxyalkanoyl aminoalkylamines
GB986199A New 1-(alkoxyphenylalkyl)-2-imidazolinones, -2-imidazolidinones and -2-pyrimidinonesand their manufacture
GB912946A Improvements in or relating to new substituted 2,6-diketopiperazines, intermediates in the production thereof and processes for their production
ES259813A1 Procedure for the preparation of new methylene derivatives (Machine-translation by Google Translate, not legally binding)
GB893391A Improvements in or relating to new phenylacetic acid derivatives having central depressant activity and processes for their production
GB855379A Improvements in or relating to a new substituted 2,6-diketopiperazine and its manufacture