Alex L. Halberstadt

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London, GB

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Patents Grantslast 30 patents

Information Patent Grant
Tungsten halogen lamp
- Patent number 5,157,758
- Issue date Oct 20, 1992
- THORN EMI plc
- Alex L. Halberstadt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microwave oven having a source of infra-red radiation
- Patent number 4,728,763
- Issue date Mar 1, 1988
- THORN EMI Appliances Limited
- Geoffrey I. Bell
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Incandescent lamps
- Patent number 4,710,677
- Issue date Dec 1, 1987
- THORN EMI plc
- Alex L. Halberstadt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Filter holder
- Patent number D291368
- Issue date Aug 11, 1987
- THORN EMI plc
- John A. Letchford
- D26 - Lighting
Information Patent Grant
Quartz infra-red lamps
- Patent number 4,598,194
- Issue date Jul 1, 1986
- THORN EMI plc
- Alex L. Halberstadt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heating apparatus
- Patent number 4,556,786
- Issue date Dec 3, 1985
- Thorn Emi Domestic Appliances Limited
- Kenneth S. Frost
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Mirror lamp
- Patent number 4,156,889
- Issue date May 29, 1979
- Thorn Electrical Industries Limited
- Alex L. Halberstadt
- H01 - BASIC ELECTRIC ELEMENTS