Assignee
NAT ELEMENT INC
US·5 granted patents·55 citations·filing 1976–1985
Technology mixH05B5
Top patents by PatentIndex Score
5 records- 0167US4016403AElectrical heating elementNAT ELEMENT INC·Filed 1976·Granted Apr 5, 1977·22 cites·20 claims
- 0252US4337390AElectric heating elementNAT ELEMENT INC·Filed 1981·Granted Jun 29, 1982·14 cites·12 claims
- 0341US4243872AElectrical heating elementNAT ELEMENT INC·Filed 1979·Granted Jan 6, 1981·8 cites·1 claims
- 0435US4649368AElectrical resistance heating elementNAT ELEMENT INC·Filed 1985·Granted Mar 10, 1987·6 cites·13 claims
- 0533US4449016ACeramic heater support and spacer blockNAT ELEMENT INC·Filed 1981·Granted May 15, 1984·5 cites·1 claims
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