Learn more

BERKEFELD FILTER GES UND CELLE

Overview
  • Total Patents
    29
About

BERKEFELD FILTER GES UND CELLE has a total of 29 patent applications. Its first patent ever was published in 1942. It filed its patents most often in France, Germany and Switzerland. Its main competitors in its focus markets chemical engineering, mechanical elements and environmental technology are 2661881 ONTARIO LTD, HEBEI WEIWO ENVIRONMENT ENGINEERING TECH CO LTD and SILICA VERFAHRENSTECHNIK GMBH.

Patent filings in countries

World map showing BERKEFELD FILTER GES UND CELLEs patent filings in countries
# Country Total Patents
#1 France 8
#2 Germany 7
#3 Switzerland 6
#4 United Kingdom 4
#5 Austria 2
#6 United States 2

Patent filings per year

Chart showing BERKEFELD FILTER GES UND CELLEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gmbh Berkefeld-Filter Gesellsc 4
#2 F H Mehls Dr Karl 2
#3 F H Dr Rer Nat Mehls Karl 2
#4 Thiel Klaus 1
#5 Haack Hans Werner 1
#6 Wilhelm Nowak 1
#7 Haack Hans-Werner 1
#8 Karl-Heinz Anton 1
#9 Karl F H Dr Mehls 1
#10 Hans Pfluger 1

Latest patents

Publication Filing date Title
DE1927713A1 Diaphragm pump
DE1792605A1 Process and device for adding chemicals to liquids
DE1767501A1 Process for the retention of molecular or ionogenic solution components from liquids
DE1611057A1 Filtration Process
GB1072882A Improvements in and relating to filters
DE1442374A1 Method and device for filtration and / or for carrying out sorption reactions
US3193129A Multiple section container
US2884135A Precoated filters for liquids
GB703752A Improvements in or relating to precoated filters for liquids
DE804804C Filter nozzle with immersion tube
DE808952C Filter nozzle