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SIGRI GMBH, A CORP. OF GERMANY
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AUGSBURG, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for the inhibition of the puffing of cokes produced from co...
Patent number
5,104,518
Issue date
Apr 14, 1992
Sigri GmbH
Hubert Jager
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Process for the production of non-puffing shaped carbon bodies
Patent number
5,068,026
Issue date
Nov 26, 1991
Sigri GmbH
Hubert Jager
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Adhesive connection of tubes formed of carbon or graphite
Patent number
4,941,692
Issue date
Jul 17, 1990
Sigri GmbH
Kurt Schaffner
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Connection of carbon or graphite tubes
Patent number
4,921,283
Issue date
May 1, 1990
Sigri GmbH
Kurt Schaffner
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method and apparatus for extracting saturated steam in the synthesi...
Patent number
4,903,641
Issue date
Feb 27, 1990
Sigri GmbH
Eduard Gohl
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method for coating carbon and graphite bodies
Patent number
4,716,572
Issue date
Dec 29, 1987
Sigri GmbH
Heinrich Kuhn
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for the manufacture of vitreous carbon bodies
Patent number
4,698,189
Issue date
Oct 6, 1987
Sigri GmbH
Ernst Tetzlaff
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Electrode connection
Patent number
4,691,324
Issue date
Sep 1, 1987
Sigri GmbH
Gunter Kraus
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Anode for electrochemical process
Patent number
4,663,010
Issue date
May 5, 1987
Sigri GmbH
Heiner Debrodt
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Method for dissolving salt encrustations in a heat exchanger
Patent number
4,651,655
Issue date
Mar 24, 1987
Sigri GmbH
Jurgen Kunzel
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Cooled furnace head for heavy-current resistance furnaces
Patent number
4,641,321
Issue date
Feb 3, 1987
Sigri GmbH
Jurgen Semmler
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Port for graphitization furnace
Patent number
4,639,930
Issue date
Jan 27, 1987
Sigri GmbH
Ulrich Kandzia
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Joint threads carbon on graphite electrode
Patent number
4,629,280
Issue date
Dec 16, 1986
Sigri GmbH
Jurgen Semmler
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Storage body for a regenerator
Patent number
4,615,379
Issue date
Oct 7, 1986
Sigri GmbH
Jurgen Kunzel
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Graphite electrode for arc furnaces and method for manufacturing same
Patent number
4,594,722
Issue date
Jun 10, 1986
Sigri GmbH
Horst Boder
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Lining for an electrolysis cell for the production of aluminum
Patent number
4,589,967
Issue date
May 20, 1986
Sigri GmbH
Karl W. F. Etzel
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74159073 - SIGRAFORM
Serial number
74159073
Registration number
1730628
Filing date
Apr 22, 1991
Sigri GmbH
6 - Common metals and their alloys
Information
Trademark
73757115 - SILIT
Serial number
73757115
Registration number
1644949
Filing date
Oct 6, 1988
SIGRI GMBH
7 - Machines and machine tools
Information
Trademark
73603605 - LICUFLON
Serial number
73603605
Registration number
1445033
Filing date
Jun 11, 1986
SIGRI GMBH
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73568317 - SIGRAFIL
Serial number
73568317
Registration number
1429216
Filing date
Nov 13, 1985
SIGRI GMBH
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes