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SPEER CARBON COMPANY

Overview
  • Total Patents
    33
About

SPEER CARBON COMPANY has a total of 33 patent applications. Its first patent ever was published in 1916. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets electrical machinery and energy, machines and mechanical elements are FRANKLIN ALBERT W, EISLER ELECTRIC CORP and MAGHERINI DINO.

Patent filings in countries

World map showing SPEER CARBON COMPANYs patent filings in countries
# Country Total Patents
#1 United States 25
#2 Canada 4
#3 France 2
#4 United Kingdom 2

Patent filings per year

Chart showing SPEER CARBON COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bemis Arthur S 4
#2 Augusta Zitzler John 4
#3 Krellner Clement H 3
#4 Falcettoni John B 2
#5 May Millard S 2
#6 Abbott Harald W 2
#7 Veley Hugh N 2
#8 Morelli Gino W 2
#9 Mcgarvey Harold J 1
#10 Arelt Eugene G 1

Latest patents

Publication Filing date Title
US2966115A Screen printing apparatus
US2941829A Electrode connecting nipple and method
US2941828A Electrode connecting nipple and joint
US2903627A Mounting for electric circuit components and printed circuit unit
US2907971A Molded zigzag resistor and method of making
US2903666A Resistors with integral molded metal terminals
US2810117A Electrode connecting nipple
US2855630A Manufacture of molded-in shunt electrical contact members
GB727349A Improvements in electrical connections to electrically conducting carbon blocks
US2675581A Apparatus for producing insulated resistor shells
US2654038A Molded-in shunt electrical contact member
US2631252A Connection for carbon brushes
US2181076A Electrical brush
US2200930A Process of and apparatus for heating materials
US2131021A Carbonized product and manufacture thereof
US2158995A Method of manufacturing anodes
GB443075A Improvements in or relating to anodes for electron discharge devices
US2093800A Bearing and method of manufacturing same
US2093799A Bearing
US2158998A Anode and method of manufacturing the same