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SIEMENS PLANIAWERKE AG

Overview
  • Total Patents
    567
About

SIEMENS PLANIAWERKE AG has a total of 567 patent applications. Its first patent ever was published in 1922. It filed its patents most often in Germany, Switzerland and France. Its main competitors in its focus markets electrical machinery and energy, materials and metallurgy and environmental technology are BIURO P PRZEMYSLU METAL, SADECKIE ZAKLADY ELEKTRO WEGLO and KANTHAL AB.

Patent filings in countries

World map showing SIEMENS PLANIAWERKE AGs patent filings in countries
# Country Total Patents
#1 Germany 245
#2 Switzerland 78
#3 France 68
#4 United Kingdom 61
#5 Austria 54
#6 United States 27
#7 Sweden 14
#8 Canada 12
#9 Belgium 3
#10 Spain 3
#11 Denmark 1
#12 Greece 1

Patent filings per year

Chart showing SIEMENS PLANIAWERKE AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fuer Kohlefabrikate Siemens-Pl 49
#2 Fitzer Dipl-Ing Dr Techn Erich 23
#3 Wartburg Dr-Ing Oswald Von 16
#4 Fitzer Dr Techn Erich 14
#5 Fitzer Dr Erich 14
#6 Selka Friedrich 11
#7 Kaufmann Dr Waldemar 11
#8 Erich Fitzer 10
#9 Fitzer Erich 9
#10 Wartburg Dr-Ing Oswald V 8

Latest patents

Publication Filing date Title
GB1123319A The determination of the effective diameter of conical screwthreads
US3307136A Contact layer for a siliconcontaining material
GB1105765A Arrangement for measuring the cone angle of conical screw-threaded recesses
GB1105764A Methods of producing isotropic shaped carbon bodies
GB1109704A Method of joining a carbon body to another body
GB1049082A An electrical heating element of silicon carbide and a method of making such a heating element
ES306907A1 Device for the assembled threaded unión of two carbon elements. (Machine-translation by Google Translate, not legally binding)
GB1071098A A method and furnace for producing graphite electrodes
US3366724A Furnace for producing graphite electrodes
US3318375A Block-type heat exchanger
US3413147A Method of protectively treating an electrically and thermally conducting refractory body of sintered silicon carbide
GB1048265A Silicon carbide heating element
GB964465A Improvements in or relating to heat exchangers having graphite tubes
US3279042A Method for producing a contact layer on a silicon-containing material
GB960883A Process for reducing the gas permeability of bodies consisting substantially of carbon
DE1137150B Molded bodies made of carbon or graphite as electrodes or connecting nipples
DE1123967B Gas- and liquid-tight and, moreover, solid graphite body
DE1215826B Method of making a nuclear reactor fuel element
DE1213331B Graphite molded body made of natural graphite for reactor technology
ES257734A1 Union system between electrodes with carbon content through a double cone threaded nozzle to join with cement (Machine-translation by Google Translate, not legally binding)