Inventor · disambiguated record
Donald M. Cunningham
Also filed as: CUNNINGHAM DONALD M
22 granted patents·370 citations·filing 1974–2001
96Inventor score
Top patents by PatentIndex Score
22 records- 0193US3943328AElectric heating elementsEMERSON ELECTRIC CO·Filed 1974·Granted Mar 9, 1976·49 cites·17 claims
- 0291US4395618AElectric circulation heater for heating fluids such as oilEMERSON ELECTRIC CO·Filed 1980·Granted Jul 26, 1983·55 cites·4 claims
- 0381US4687905AElectric immersion heating element assembly for use with a plastic water heater tankEMERSON ELECTRIC CO·Filed 1986·Granted Aug 18, 1987·48 cites·2 claims
- 0480US4214150AElectric heating elementsEMERSON ELECTRIC CO·Filed 1978·Granted Jul 22, 1980·31 cites·6 claims
- 0565US3933200ATemperature conditioning meansEMERSON ELECTRIC CO·Filed 1974·Granted Jan 20, 1976·17 cites·7 claims
- 0662US3934116AElectric heater assembliesEMERSON ELECTRIC CO·Filed 1974·Granted Jan 20, 1976·12 cites·4 claims
- 0760US4319127AElectric heating elementsEMERSON ELECTRIC CO·Filed 1980·Granted Mar 9, 1982·21 cites·2 claims
- 0858US4543469AGrounding arrangement for metal sheathed heating element having a plastic mounting memberEMERSON ELECTRIC CO·Filed 1982·Granted Sep 24, 1985·15 cites·20 claims
- 0956US5220155AHeating and sensing apparatus for range topEMERSON ELECTRIC CO·Filed 1992·Granted Jun 15, 1993·16 cites·22 claims
- 1054US6191400B1Metal sheath heating element and method of manufacturing sameEMERSON ELECTRIC CO·Filed 1999·Granted Feb 20, 2001·15 cites·11 claims
- 1152US4650972AHeating cable and method of making sameEMERSON ELECTRIC CO·Filed 1985·Granted Mar 17, 1987·12 cites·8 claims
- 1251US4689470ASelf-regulating baseboard heater, system and methodEMERSON ELECTRIC CO·Filed 1986·Granted Aug 25, 1987·12 cites·6 claims
- 1350US4900897ASheathed electric heating element assemblyEMERSON ELECTRIC CO·Filed 1988·Granted Feb 13, 1990·13 cites·3 claims
- 1450US4468556AElectric heating elementsEMERSON ELECTRIC CO·Filed 1982·Granted Aug 28, 1984·11 cites·9 claims
- 1547US6668136B2Integral heating and cooling unitCHROMALOX INC·Filed 2001·Granted Dec 23, 2003·5 cites·28 claims
- 1644US3931495AElectric heating unitsEMERSON ELECTRIC CO·Filed 1974·Granted Jan 6, 1976·6 cites·9 claims
- 1743US5243903ARecyclable container compactorBLACKMER MICHAEL A·Filed 1992·Granted Sep 14, 1993·11 cites·10 claims
- 1842US4010350AElectric heating elementsEMERSON ELECTRIC CO·Filed 1976·Granted Mar 1, 1977·7 cites·6 claims
- 1941US4733055AHeat transfer heating element and methodEMERSON ELECTRIC CO·Filed 1986·Granted Mar 22, 1988·6 cites·7 claims
- 2037USD263734SMetal extrusion for an electric heating elementEMERSON ELECTRIC CO·Filed 1980·Granted Apr 6, 1982·2 cites·1 claims
- 2136US4178497AEnd seals for electric immersion heating elementsEMERSON ELECTRIC CO·Filed 1977·Granted Dec 11, 1979·4 cites·7 claims
- 2231US4879453ASelf-regulating baseboard heater and systemEMERSON ELECTRIC CO·Filed 1987·Granted Nov 7, 1989·2 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →