Elkem-Spigerverket a/s

Organization

Oslo, NO

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Lock mechanism
- Patent number 4,384,465
- Issue date May 24, 1983
- Elkem-Spigerverket A/S
- Frank Muus
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Spade
- Patent number D267306
- Issue date Dec 21, 1982
- Elkem-Spigerverket, A/S
- Egil Hyggen
- D08 - Tools and hardware
Information Patent Grant
Apparatus for gas collection in open electric smelting furnaces
- Patent number RE30937
- Issue date May 18, 1982
- Elkem-Spigerverket a/s
- Harald Krogsrud
- 373 - Industrial electric heating furnaces
Information Patent Grant
Method of precipitation of pure aluminiumchloride from solutions wh...
- Patent number 4,297,327
- Issue date Oct 27, 1981
- Elkem-Spigerverket a/s
- Norvald Gjelsvik
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of producing a pure aluminiumoxide from solutions containing...
- Patent number 4,297,326
- Issue date Oct 27, 1981
- Elkem-Spigerverket a/s
- Norvald Gjelsvik
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Direct current smelting furnace
- Patent number 4,254,298
- Issue date Mar 3, 1981
- Elkem-Spigerverket A/S
- Eivind C. K. Svendsen
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Detection of flaws in metal members
- Patent number 4,247,306
- Issue date Jan 27, 1981
- Elkem-Spigerverket a/s
- Arnulf Berge
- G01 - MEASURING TESTING
Information Patent Grant
Roof for covered electric smelting furnaces
- Patent number 4,245,133
- Issue date Jan 13, 1981
- Elkem-Spigerverket, A/S
- Harald Krogsrud
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Gas tight seal for electrodes in smelting furnaces
- Patent number 4,238,634
- Issue date Dec 9, 1980
- Elkem-Spigerverket a/s
- Harald Krogsrud
- C21 - METALLURGY OF IRON
Information Patent Grant
Locking latch handle for windows, doors, and the like
- Patent number 4,196,602
- Issue date Apr 8, 1980
- Elkem-Spigerverket a/s
- Petter O. Akselsen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Vehicle trailer construction
- Patent number 4,168,093
- Issue date Sep 18, 1979
- Elkem-Spigerverket a/s
- Sven I. Dysthe
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Matte smelting
- Patent number 4,166,192
- Issue date Aug 28, 1979
- Elkem-Spigerverket A/S
- Birger L. Ydstie
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of producing mechanically strong pellets from non-oxidizable...
- Patent number 4,162,284
- Issue date Jul 24, 1979
- Elkem-Spigerverket a/s
- Erik Q. Dahl
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of producing mechanically strong metal oxide pellets
- Patent number 4,161,501
- Issue date Jul 17, 1979
- Elkem-Spigerverket a/s
- Hans Skretting
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
System for continuous analysis of gasses
- Patent number 4,147,500
- Issue date Apr 3, 1979
- Elkem-Spigerverket A/S
- Harald Karlsoen
- G01 - MEASURING TESTING
Information Patent Grant
Method of disposing of precipitated silica
- Patent number 4,141,945
- Issue date Feb 27, 1979
- Elkem-Spigerverket a/s
- Tore Anderssen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Apparatus for purification of gasses
- Patent number 4,133,657
- Issue date Jan 9, 1979
- Elkem-Spigerverket a/s
- Harald Krogsrud
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of compacting silica dust
- Patent number 4,126,424
- Issue date Nov 21, 1978
- Elkem-Spigerverket a/s
- Ole A. Kongsgaarden
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of increasing the bulk density of silica dust
- Patent number 4,126,423
- Issue date Nov 21, 1978
- Elkem-Spigerverket A/S
- Ole A. Kongsgaarden
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Gripping shoes for vehicle wheels
- Patent number 4,122,881
- Issue date Oct 31, 1978
- Elkem-Spigerverket a/s
- Egil Hyggen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Auxiliary gripping members for gripping shoes for vehicle wheels
- Patent number 4,122,880
- Issue date Oct 31, 1978
- Elkem-Spigerverket a/s
- Egil Hyggen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of treating wet-washed silica dust
- Patent number 4,116,830
- Issue date Sep 26, 1978
- Elkem-Spigerverket a/s
- Harald Krogsrud
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Matte smelting
- Patent number 4,115,108
- Issue date Sep 19, 1978
- Elkem-Spigerverket a/s
- Birger Leif Ydstie
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Apparatus for collection of tapping gases from electric smelting fu...
- Patent number 4,081,178
- Issue date Mar 28, 1978
- Elkem-Spigerverket A/S
- Leif Kopperstad
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Apparatus for plugging holes in an electric smelting furnace or the...
- Patent number 4,072,250
- Issue date Feb 7, 1978
- Elkem-Spigerverket A/S
- Thor Pedersen
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of recovering fluorine from carbonaceous waste material
- Patent number 4,065,551
- Issue date Dec 27, 1977
- Elkem-Spigerverket A/S
- Erik Qvale Dahl
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for purification of industrial waste water
- Patent number 4,059,514
- Issue date Nov 22, 1977
- Elkem-Spigerverket A/S
- Knut Waldemar Jahnsen
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Apparatus for use in repair of ingot molds
- Patent number 3,989,918
- Issue date Nov 2, 1976
- Elkem-Spigerverket A/S
- Einar Onarheim
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rotatable furnace pot for smelting furnaces
- Patent number 3,975,575
- Issue date Aug 17, 1976
- Elkem-Spigerverket A/S
- Harald Krogsrud
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Rotatable furnace pot including stoking means
- Patent number 3,975,576
- Issue date Aug 17, 1976
- Elkem-Spigerverket A/S
- Harald Krogsrud
- F27 - FURNACES KILNS OVENS RETORTS

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
73240364 - NORGE
- Serial number 73240364
- Filing date Nov 26, 1979
- Elkem-Spigerverket A/S
- 8 - Hand tools and implements (hand-operated)
Information Trademark
73208903 - VINGCARD SYSTEM TRIOVING
- Serial number 73208903
- Registration number 1258240
- Filing date Mar 26, 1979
- Elkem-Spigerverket A/S
- 6 - Common metals and their alloys
Information Trademark
73205160 - ES ELKEM
- Serial number 73205160
- Registration number 1136586
- Filing date Feb 26, 1979
- ELKEM-SPIGERVERKET A/S
- 6 - Common metals and their alloys
Information Trademark
72458367 - KNIPETAK
- Serial number 72458367
- Registration number 998650
- Filing date May 23, 1973
- Elkem-Spigerverket A/S
- 12 - Vehicles
Information Trademark
72458368 - SNOWGRIP
- Serial number 72458368
- Registration number 998651
- Filing date May 23, 1973
- Elkem-Spigerverket A/S
- 12 - Vehicles

Elkem-Spigerverket a/s

Organization

Patents Grantslast 30 patents

Lock mechanism

Spade

Apparatus for gas collection in open electric smelting furnaces

Method of precipitation of pure aluminiumchloride from solutions wh...

Method of producing a pure aluminiumoxide from solutions containing...

Direct current smelting furnace

Detection of flaws in metal members

Roof for covered electric smelting furnaces

Gas tight seal for electrodes in smelting furnaces

Locking latch handle for windows, doors, and the like

Vehicle trailer construction

Matte smelting

Method of producing mechanically strong pellets from non-oxidizable...

Method of producing mechanically strong metal oxide pellets

System for continuous analysis of gasses

Method of disposing of precipitated silica

Apparatus for purification of gasses

Method of compacting silica dust

Method of increasing the bulk density of silica dust

Gripping shoes for vehicle wheels

Auxiliary gripping members for gripping shoes for vehicle wheels

Method of treating wet-washed silica dust

Matte smelting

Apparatus for collection of tapping gases from electric smelting fu...

Apparatus for plugging holes in an electric smelting furnace or the...

Method of recovering fluorine from carbonaceous waste material

Method for purification of industrial waste water

Apparatus for use in repair of ingot molds

Rotatable furnace pot for smelting furnaces

Rotatable furnace pot including stoking means

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

73240364 - NORGE

73208903 - VINGCARD SYSTEM TRIOVING

73205160 - ES ELKEM

72458367 - KNIPETAK

72458368 - SNOWGRIP