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PORZELLANFABRIK KAHLA ZWEIGNIE

Overview
  • Total Patents
    21
About

PORZELLANFABRIK KAHLA ZWEIGNIE has a total of 21 patent applications. Its first patent ever was published in 1919. It filed its patents most often in Germany, Switzerland and France. Its main competitors in its focus markets materials and metallurgy, machines and thermal processes are ZHENGZHOU DONGFANG ANCAI REFRACTORY CO LTD, ZYTAN THERMOCHEM VERFAHREN and ROYALTY FINANS AB.

Patent filings in countries

World map showing PORZELLANFABRIK KAHLA ZWEIGNIEs patent filings in countries
# Country Total Patents
#1 Germany 9
#2 Switzerland 3
#3 France 3
#4 United Kingdom 3
#5 Denmark 2
#6 Finland 1

Patent filings per year

Chart showing PORZELLANFABRIK KAHLA ZWEIGNIEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zweigniederlassung Freiberg Po 3
#2 Wirth Dipl-Ing Ludwig 3
#3 Rath Dr Werner 1
#4 Hofmann Dr-Ing E H Werner 1
#5 Dettmer Dipl-Ing Friedrich 1

Latest patents

Publication Filing date Title
GB391704A Improvements in and relating to the firing of ceramic masses
DE586424C Firing process for ceramic pressed material and ceramic masses
GB367828A Improvements in and relating to the dry moulding of ceramic materials
GB346148A Improvements in or relating to the manufacture of objects from plastic, particularly ceramic substances by rotation and pressure
DE582312C Process for the production of bodies from mineral raw materials that cannot be pressed dry per se
DE507218C Process for electroplating ceramic bodies
DE621523C Process for the production of homogenized ceramic mass or of ceramic bodies from homogenized mass
DE507880C Process for heating ceramic ovens by directly acting flue gases and by electric heating elements and tunnel ovens
DE513458C Process for operating indirectly heated ceramic tunnel ovens
DE382751C Avoiding the risk of explosion in gas fire lines
DE536526C Method and device for decorating crockery to be decorated several times in one operation
DE393256C Process for the production of ceramic products, in particular insulators, which contain loose bodies inside