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ZAHN & CO

Overview
  • Total Patents
    15
About

ZAHN & CO has a total of 15 patent applications. Its first patent ever was published in 1925. It filed its patents most often in Germany, France and Switzerland. Its main competitors in its focus markets materials and metallurgy, chemical engineering and engines, pumps and turbines are SICHUAN TECHAIRS CO LTD, XINTE ENERGY CO LTD and AZOTE CIE.

Patent filings in countries

World map showing ZAHN & COs patent filings in countries
# Country Total Patents
#1 Germany 10
#2 France 3
#3 Switzerland 2

Patent filings per year

Chart showing ZAHN & COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zahn Co 2
#2 D Ans Dipl-Ing Paul 2
#3 Doell Dr Richard 1
#4 Zahn Dr Phil Oskar 1
#5 Dreyer Dr-Ing Karl 1

Latest patents

Publication Filing date Title
DE510091C Device for distributing the dry load in mechanical ovens, especially for sulphate production
DE509133C Process for the production of alkali chromates
DE518780C Digestion of chrome and similar ores
DE485770C Distillation and rectification of carbon disulfide
DE467929C Process and device for the distillation and rectification of carbon disulfide
DE469170C Process and device for the distillation and rectification of carbon disulfide