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Patents Grants
last 30 patents
Information
Patent Grant
Device and method for well stimulation
Patent number
9,856,725
Issue date
Jan 2, 2018
ELEKTRO-THERMIT GMBH & CO. KG
Vladimir Stehle
E21 - EARTH DRILLING MINING
Information
Patent Grant
Process for the aluminothermic welding of rails with alloying of th...
Patent number
6,227,282
Issue date
May 8, 2001
Elektro-Thermit GmbH
Frank Kuster
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Process for the aluminothermic welding of rails with alloying of th...
Patent number
6,125,913
Issue date
Oct 3, 2000
Elektro-Thermit GmbH
Gerhardus Johannes Mulder
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Automatic tapping thimble
Patent number
6,120,726
Issue date
Sep 19, 2000
Elektro-Thermit GmbH
Horst Eggert
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Aluminothermic mixture with ferrochromium alloy
Patent number
5,944,914
Issue date
Aug 31, 1999
Elektro-Thermit GmbH
Georg Frommeyer
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Casting mold for fusion welding of two workpieces
Patent number
5,850,962
Issue date
Dec 22, 1998
Elektro-Thermit GmbH
Frank Kuster
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for the aluminothermal production of molten steel
Patent number
5,753,006
Issue date
May 19, 1998
Elektro-Thermit GmbH
Horst Eggert
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Friction bearing alloy
Patent number
5,705,126
Issue date
Jan 6, 1998
Elektro-Thermit GmbH
Michael Bohsmann
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for intermediate cast type welding of finely pearlitized rails
Patent number
5,531,259
Issue date
Jul 2, 1996
Elektro-Thermit GmbH
Frank Kuster
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for raising welded rail connections lying below the travelin...
Patent number
5,486,245
Issue date
Jan 23, 1996
Elektro-Thermit GmbH
Gerhardus J. Mulder
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Metallothermal reaction mixture
Patent number
5,370,726
Issue date
Dec 6, 1994
Elektro-Thermit GmbH
Johann-Hugo Wirtz
C06 - EXPLOSIVES MATCHES
Information
Patent Grant
Method and apparatus for grinding the running and/or guide surfaces...
Patent number
5,031,365
Issue date
Jul 16, 1991
Elektro-Thermit GmbH
Gerhard Arndt
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Process for welding a railway rail, aluminothermic heating blocks f...
Patent number
4,830,611
Issue date
May 16, 1989
Elektro-Thermit GmbH
Johannes Guntermann
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Grooved rail switch with a tongue rail device
Patent number
4,634,087
Issue date
Jan 6, 1987
Elektro-Thermit GmbH
Bernd-Joachim Kempa
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Frog for switches
Patent number
4,589,617
Issue date
May 20, 1986
Elektro-Thermit GmbH
Bernd-Joachim Kempa
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Self-opening closure for a casting crucible used in aluminothermic...
Patent number
4,522,322
Issue date
Jun 11, 1985
Elektro-Thermit GmbH
Hans Guntermann
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Corrugation-free rail
Patent number
4,389,015
Issue date
Jun 21, 1983
Elektro-Thermit GmbH
Hans Guntermann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Casting mold for aluminothermically welding rails together
Patent number
4,247,074
Issue date
Jan 27, 1981
Elektro-Thermit GmbH
Josef Stratmann
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Point switch
Patent number
4,210,300
Issue date
Jul 1, 1980
Elektro-Thermit GmbH
Bernd-Joachim Kempa
B61 - RAILWAYS
Information
Patent Grant
Method for moving a railway switch and equipment for implementing t...
Patent number
4,174,820
Issue date
Nov 20, 1979
Elektro-Thermit GmbH
Bernd-Joachim Kempa
B61 - RAILWAYS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74435366 - RIFLEX
Serial number
74435366
Filing date
Sep 10, 1993
Elektro-Thermit GmbH
37 - Building construction
Information
Trademark
73610251 - RIFLEX
Serial number
73610251
Registration number
1454856
Filing date
Jul 18, 1986
ELEKTRO-THERMIT GMBH
6 - Common metals and their alloys
Information
Trademark
73610245 - ETEKA 5
Serial number
73610245
Registration number
1456099
Filing date
Jul 18, 1986
ELEKTRO-THERMIT GMBH
6 - Common metals and their alloys