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.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 35 | |
#2 | Canada | 32 | |
#3 | United Kingdom | 30 | |
#4 | Switzerland | 24 | |
#5 | Germany | 24 | |
#6 | France | 18 | |
#7 | Australia | 6 | |
#8 | Brazil | 6 | |
#9 | Japan | 6 | |
#10 | Sweden | 6 | |
#11 | Netherlands | 3 | |
#12 | Italy | 1 | |
#13 | WIPO (World Intellectual Property Organization) | 1 |
# | Industry | |
---|---|---|
#1 | Materials and metallurgy | |
#2 | Chemical engineering | |
#3 | Machines | |
#4 | Packaging and shipping | |
#5 | Electrical machinery and energy | |
#6 | Environmental technology | |
#7 | Mechanical elements |
# | Technology | |
---|---|---|
#1 | Foundry moulding | |
#2 | Mixing | |
#3 | Milling | |
#4 | Unspecified technologies | |
#5 | Transport or storage devices | |
#6 | Batteries | |
#7 | Magnetic or electrostatic solid separation | |
#8 | Reduction of greenhouse gas emissions | |
#9 | Venting or aerating devices | |
#10 | Separation |
# | 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 |
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 |