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NAT MINE SERVICE CO

Overview
  • Total Patents
    155
About

NAT MINE SERVICE CO has a total of 155 patent applications. Its first patent ever was published in 1953. It filed its patents most often in United States, Australia and South Africa. Its main competitors in its focus markets civil engineering, environmental technology and packaging and shipping are ROCMEC INTERNAT INC, EICKHOFF MASCHF EISEN and JOY SULLIVAN LTD.

Patent filings in countries

World map showing NAT MINE SERVICE COs patent filings in countries
# Country Total Patents
#1 United States 59
#2 Australia 24
#3 South Africa 24
#4 United Kingdom 21
#5 Canada 15
#6 France 6
#7 Japan 5
#8 Germany 1

Patent filings per year

Chart showing NAT MINE SERVICE COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lebegue Maurice K 30
#2 Michael Earl C 13
#3 Karlovsky Jr Jerry 11
#4 Karlovsky Jerry Jr 10
#5 Baum Gerald L 9
#6 Lebegue M 7
#7 Cookson John M 5
#8 Vactor Benjamin H Van 5
#9 Freed Jr Donald L 5
#10 Freed Donald L Jr 4

Latest patents

Publication Filing date Title
US4641888A Material gathering device for a mining machine
US4633147A Electric powered vehicle and method of propelling the same
US4546849A Machine operators compartment
US4582363A Drive assembly for mining machine cutter drum
US4556200A Re-railing jack
US4538941A Rock duster apparatus
US4531784A Mining machine with dust collector apparatus
US4332772A Portable gas detector
AU7106681A Mine machine trini chain adjustment
AU7099081A Radially extensible cutter arm
US4380354A Mining machine loading bin mounted on boom structure and method
JPS5683638A Planetary gear supporting device
US4339153A Apparatus for extending and retracting the cutter bars of a boring type mining machine
US4316635A Extensible and retraciable rotor arm cutting assembly
US4315956A Process for depositing cobalt ondes on a refractory-coated platinum resistor coil
US4296856A Material gathering device for a mining machine
US4299424A Cutting tool assembly
US4281879A Stabilizing assembly for a mining machine
US4270803A Cutter drum drive assembly for canted end sections
US4310199A Cutter drum assembly for a continuous mining machine