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SIGRI GMBH

Overview
  • Total Patents
    137
About

SIGRI GMBH has a total of 137 patent applications. Its first patent ever was published in 1972. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets materials and metallurgy, surface technology and coating and electrical machinery and energy are SIGRI ELEKTROGRAPHIT GMBH, OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOSTYU FORES and TEUTONIA CEMENTWERK.

Patent filings in countries

World map showing SIGRI GMBHs patent filings in countries

Patent filings per year

Chart showing SIGRI GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ullmann Gerhard 11
#2 Swozil Adolf 11
#3 Bode Reiner 7
#4 Jaeger Hubert 6
#5 Schaffner Kurt 6
#6 Debrodt Heiner Dr Ing 6
#7 Wege Erhard Dr Rer Nat 5
#8 Kuenzel Juergen 4
#9 Debrodt Heiner 4
#10 Fuuberuto Ieegaa 4

Latest patents

Publication Filing date Title
DE4104447A1 CORROSION AND HEAT RESISTANT ORDERED PACK FOR FABRIC AND HEAT EXCHANGE PROCESSES
GB9003100D0 Process for the production of non-puffing shaped carbon bodies
GB9003101D0 Process for the inhibition of the puffing of coke produced from coal tar pitches
EP0433478A1 Laminate of carbon fleece and graphite foil
EP0431202A1 Corrosion-proof lining
EP0351632A2 Drive system for intermittently working cutting machines
DE3907156A1 METHOD FOR INHIBITING THE PUFFING OF COCKS MADE FROM CARBON TECH
DE3907159A1 METHOD FOR PRODUCING NON-PUBLIC CARBON BODIES
EP0330866A1 Superstructure for heating furnace cars
DE3820714A1 Crucible for molten silicon
DE3818066A1 ADHESIVE CONNECTION OF CARBON OR GRAPHITE TUBES
DE3818067A1 CONNECTING CARBON OR GRAPHITE TUBES
DE3809361A1 METHOD FOR REDUCING THE COMBUSTION OF GRAPHITE ELECTRODES
DE3807264A1 METHOD AND DEVICE FOR THE DETERMINATION OF SATURRENT VAPOR IN THE SYNTHESIS OF HYDROGEN CHLORINE GAS
DE3803251A1 Process for improving the slip properties of tars and pitches
EP0325671A1 Fire chariot superstructure
DE3734226A1 Process for the production of short-cut carbon fibres
EP0300064A1 Blast furnace hearth
DE3718171A1 Thermally stable fibres
DE3715894A1 METHOD FOR PRODUCING A METAL-COATED FIBER-REINFORCED PLASTIC PIPE