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.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 10 | |
#2 | France | 3 | |
#3 | Switzerland | 2 |
# | 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 |
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 |