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PFEIFFER FA CHRISTIAN

Overview
  • Total Patents
    30
About

PFEIFFER FA CHRISTIAN has a total of 30 patent applications. Its first patent ever was published in 1955. It filed its patents most often in Germany, France and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, machines and engines, pumps and turbines are GUSTAV PLATH, MANOLA UMBERTO and TURNER PEIRSON.

Patent filings in countries

World map showing PFEIFFER FA CHRISTIANs patent filings in countries
# Country Total Patents
#1 Germany 22
#2 France 3
#3 EPO (European Patent Office) 2
#4 Belgium 1
#5 Switzerland 1
#6 United States 1

Patent filings per year

Chart showing PFEIFFER FA CHRISTIANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Thomas Franz 9
#2 Bonk Benno 6
#3 Ernst Hanke Dipl-Ing 4
#4 Schmitz Erwin 3
#5 Hanke Ernst-Walter Dr Ing 3
#6 Buecker Werner 2
#7 Hanke Ernst W Dr-Ing 2
#8 W Dr-Ing Hanke Ernst 1
#9 Hanke Ernst W 1
#10 Hanke Dipl-Ing Ernst 1

Latest patents

Publication Filing date Title
DE3621221A1 METHOD FOR WINDPROOFING AND WINIFIFIER
DE3515026C1 Rotary air centrifuge classifier
DE3038625A1 ROTARY AIR CENTRIFUGAL SIFTER
DE2617788A1 Air press. sifting installation - with ventilator driven through central shaft and blowers and mechanical separators for fine material flow
DE2538431A1 OUTLET WALL FOR TUBE MILLS
DE2517082A1 Cool air cyclone type classifier for pulverised material - uses air for fine classification between central sifting chamber and outer ring chamber
DE2262726A1 ARMOR FOR TUBE MILLS, BALL MILLS AND THE LIKE
DE2245664A1 SCREWLESS GRINDING PLATE LINING FOR TUBE AND BALL MILLS
DE2240828A1 CLASSIFICATION PANEL FOR TUBE MILLS
DE2114347A1 Circulating air separator with hot air drying
DE1927343A1 Screening and sifting device ventilator fan
DE1913247A1 Recirculating air separator with external air intake
DE1905337A1 Recirculating air separator with external air intake
DE1905153B1 Circulating air separator
DE1817514A1 Cooled air classifier casing
DE1817515A1 Air classifier fine fraction cooler
DE1628345A1 Wear plate for fans or fans
DE1507726A1 Spreading plate for circulating air separator
DE1507724A1 Spreading plate for circulating air separator
DE1507721B1 Counter-wing arrangement for wind sifter