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.
# | Country | Total Patents | |
---|---|---|---|
#1 | France | 8 | |
#2 | Germany | 7 | |
#3 | Switzerland | 6 | |
#4 | United Kingdom | 4 | |
#5 | Austria | 2 | |
#6 | United States | 2 |
# | Industry | |
---|---|---|
#1 | Chemical engineering | |
#2 | Mechanical elements | |
#3 | Environmental technology | |
#4 | Packaging and shipping | |
#5 | Engines, pumps and turbines | |
#6 | Control | |
#7 | Textiles and paper |
# | 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 |
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 |