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NAT ENG CO

Overview
  • Total Patents
    192
About

NAT ENG CO has a total of 192 patent applications. Its first patent ever was published in 1905. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets materials and metallurgy, chemical engineering and machines are WAGNER & CO ALFELDER MASCH, ALFRED BARTLETT SMITH and SAPIC.

Patent filings in countries

World map showing NAT ENG COs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Rikker Leslie D 16
#2 Mcilvaine Robert L 15
#3 Troy Elbert C 13
#4 Kauffman John H 10
#5 Rikker L D 6
#6 Christensen Alfred C 5
#7 Kauffman J 4
#8 Robert Louis Mcilvaine 4
#9 Rikker L 4
#10 Mcilvaine Robert Louis 4

Latest patents

Publication Filing date Title
WO9631331A1 Core sand preparation apparatus
CA1102521A Method and apparatus for making molds
CA1135025A Impact scrubber
US4368984A Mixer apparatus
US4121646A Method and apparatus for making molds
US4098494A Method and apparatus for making battery paste
US3907213A Impact scrubber
US3866799A Mixer with automatically controlled discharge system
US3825190A Apparatus for treating granular material
US3821978A Automatic foundry system
US3762691A Nonplugging material feed system
US3768786A Multi-mull phase control system
US3744768A Mixer system
US3752410A Apparatus for sizing particulate material
US3635447A Modular plow system for mixers and the like
US3599649A Apparatus for cooling granular material
US3373974A Rotary mixer
US3426895A Method and apparatus for electrostatic separation
US3456906A Cooling and conditioning unit for granular material
US3395834A Automatically controlled mixer discharge system