Inventor · disambiguated record
Melvin H. Boldt
Also filed as: BOLDT DECEASED MELVIN H · BOLDT MELVIN H
41 granted patents·433 citations·filing 1975–1983
98Inventor score
Technology areasH04N
Files withZENITH RADIO CORP17NAT PRESTO INDUSTRIES INC15AMANA REFRIGERATION INC3ROWE INTERNATIONAL INC3BAUSCH & LOMB2
Top patents by PatentIndex Score
41 records- 0193USD267424SPortable radiant electric heaterNAT PRESTO INDUSTRIES INC·Filed 1980·Granted Dec 28, 1982·36 cites·1 claims
- 0293USD246686SDeep fry cookerNAT PRESTO INDUSTRIES INC·Filed 1976·Granted Dec 20, 1977·30 cites·1 claims
- 0392USD256019SHot air corn popperNAT PRESTO INDUSTRIES INC·Filed 1978·Granted Jul 22, 1980·30 cites·1 claims
- 0489USD271132SPortable radiant electric heaterNAT PRESTO INDUSTRIES INC·Filed 1981·Granted Oct 25, 1983·26 cites·1 claims
- 0588USD248008SMicrowave ovenAMANA REFRIGERATION INC·Filed 1976·Granted May 30, 1978·22 cites·1 claims
- 0688US4017129ATelevision receiver cabinet with formed decorative frontZENITH RADIO CORP·Filed 1975·Granted Apr 12, 1977·42 cites·7 claims
- 0783USD253388SElectric pressure cookerNAT PRESTO INDUSTRIES INC·Filed 1977·Granted Nov 13, 1979·16 cites·1 claims
- 0882USD250448SElectric cooking utensilNAT PRESTO INDUSTRIES INC·Filed 1976·Granted Dec 5, 1978·16 cites·1 claims
- 0981US4491872AUltra-compact projection television receiverZENITH ELECTRONICS CORP·Filed 1983·Granted Jan 1, 1985·31 cites·2 claims
- 1078USD270157STelephone handsetZENITH RADIO CORP·Filed 1981·Granted Aug 16, 1983·15 cites·1 claims
- 1178USD253867SPressure cookerNAT PRESTO INDUSTRIES INC·Filed 1977·Granted Jan 8, 1980·13 cites·1 claims
- 1278USD246635SWall-mounted smoke detectorNAT PRESTO INDUSTRIES INC·Filed 1976·Granted Dec 13, 1977·13 cites·1 claims
- 1376USD250763SDigital clock radioZENITH RADIO CORP·Filed 1977·Granted Jan 9, 1979·12 cites·1 claims
- 1474USD253746SPressure cooker regulatorNAT PRESTO INDUSTRIES INC·Filed 1978·Granted Dec 25, 1979·11 cites·1 claims
- 1568USD275029SAutomatic temperature sensing electric heaterNAT PRESTO INDUSTRIES INC·Filed 1980·Granted Aug 7, 1984·10 cites·1 claims
- 1667USD268758SCombined telephone and clock radioZENITH RADIO CORP·Filed 1981·Granted Apr 26, 1983·10 cites·1 claims
- 1763USD270354SPair of sunglassesBAUSCH & LOMB·Filed 1980·Granted Aug 30, 1983·9 cites·1 claims
- 1863USD261594SEgg cookerNAT PRESTO INDUSTRIES INC·Filed 1979·Granted Nov 3, 1981·7 cites·1 claims
- 1962US4006300ATwo-piece back for a console television receiverZENITH RADIO CORP·Filed 1975·Granted Feb 1, 1977·12 cites·7 claims
- 2060USD247948SMicrowave ovenAMANA REFRIGERATION INC·Filed 1976·Granted May 23, 1978·7 cites·1 claims
- 2158USD244052STelevision receiverZENITH RADIO CORP·Filed 1975·Granted Apr 12, 1977·6 cites·1 claims
- 2255USD254769SPressure cooker regulatorNAT PRESTO INDUSTRIES INC·Filed 1978·Granted Apr 22, 1980·5 cites·1 claims
- 2355USD248017SThermostatic electric connector plugNAT PRESTO INDUSTRIES INC·Filed 1976·Granted May 30, 1978·5 cites·1 claims
- 2453USD275952STelevision receiver cabinetZENITH RADIO CORP·Filed 1982·Granted Oct 16, 1984·6 cites·1 claims
- 2551USD267851SCombination microwave and convection ovenAMANA REFRIGERATION INC·Filed 1980·Granted Feb 8, 1983·5 cites·1 claims
- 2650USD245841STelevision receiverZENITH RADIO CORP·Filed 1976·Granted Sep 20, 1977·4 cites·1 claims
- 2749USD266668SProjection television receiverZENITH RADIO CORP·Filed 1981·Granted Oct 26, 1982·5 cites·1 claims
- 2849USD266423SProjection television receiverZENITH RADIO CORP·Filed 1981·Granted Oct 5, 1982·5 cites·1 claims
- 2949USD262018SPhonographROWE INTERNATIONAL INC·Filed 1980·Granted Nov 24, 1981·4 cites·1 claims
- 3044USD252665SElectric mini-oven with removable coverNAT PRESTO INDUSTRIES INC·Filed 1977·Granted Aug 21, 1979·3 cites·1 claims
- 3144USD244961SCombined phonograph and stereo receiverZENITH RADIO CORP·Filed 1975·Granted Jul 5, 1977·3 cites·1 claims
- 3243USD245842STelevision receiverZENITH RADIO CORP·Filed 1976·Granted Sep 20, 1977·3 cites·1 claims
- 3342USD256357SPhonographROWE INTERNATIONAL INC·Filed 1977·Granted Aug 12, 1980·2 cites·1 claims
- 3437USD275953STelevision receiver cabinetZENITH RADIO CORP·Filed 1982·Granted Oct 16, 1984·2 cites·1 claims
- 3536USD255008SCooking appliance handleNAT PRESTO INDUSTRIES INC·Filed 1977·Granted May 20, 1980·1 cites·1 claims
- 3635USD248025STelevision receiverZENITH RADIO CORP·Filed 1976·Granted May 30, 1978·1 cites·1 claims
- 3735USD246713STelevision receiverZENITH RADIO CORP·Filed 1975·Granted Dec 20, 1977·1 cites·1 claims
- 3835USD244231STelevision receiverZENITH RADIO CORP·Filed 1975·Granted May 3, 1977·1 cites·1 claims
- 3935USD244232STelevision receiverZENITH RADIO CORP·Filed 1975·Granted May 3, 1977·1 cites·1 claims
- 4032USD260765SPhonographROWE INTERNATIONAL INC·Filed 1978·Granted Sep 15, 1981·0 cites·1 claims
- 4131USD268417SPair of spectacles or similar articleBAUSCH & LOMB·Filed 1981·Granted Mar 29, 1983·2 cites·1 claims
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