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MANNESMANN DEMAG AG
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4100 DUISBURG, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Double sheave lifting block
Patent number
D300077
Issue date
Feb 28, 1989
Mannesmann Demag AG
Uwe Lichtenvort
D34 - Material or article handling equipment
Information
Patent Grant
Single sheave lifting block
Patent number
D300076
Issue date
Feb 28, 1989
Mannesmann Demag AG
Uwe Lichtenvort
D34 - Material or article handling equipment
Information
Patent Grant
Method and apparatus for thermal longitudinal parting of rectangula...
Patent number
4,602,967
Issue date
Jul 29, 1986
Mannesmann Demag AG
Gerhard Komma
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for recovery and recycling of heat from hot gases
Patent number
4,541,864
Issue date
Sep 17, 1985
Mannesmann Demag AG
Gunter Ratschat
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for thermal longitudinal parting of rectangular metal pla...
Patent number
4,478,393
Issue date
Oct 23, 1984
Mannesmann Demag AG
Gerhard Komma
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for recovery and recycling of heat from hot gases in metallu...
Patent number
4,434,004
Issue date
Feb 28, 1984
Mannesmann Demag AG
Gunter Ratschat
C21 - METALLURGY OF IRON
Information
Patent Grant
Canal building apparatus
Patent number
4,432,672
Issue date
Feb 21, 1984
Mannesmann Demag AG
Egon U. Bruderle
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Electro-metal smelting furnace with taphole arranged at the bottom
Patent number
4,401,296
Issue date
Aug 30, 1983
Mannesmann Demag AG
Klaus V. Ploetz
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Turbulent waterway
Patent number
4,392,434
Issue date
Jul 12, 1983
Mannesmann Demag AG
Dierk Durwald
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Traveling crane with top girders at the end of a bridge girder
Patent number
4,385,562
Issue date
May 31, 1983
Mannesmann Demag AG
Harald Bitsch
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Grab bucket suspended from hoisting installation
Patent number
4,364,704
Issue date
Dec 21, 1982
Mannesmann Demag AG
Peter Dreesen
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Distribution apparatus for throat closures of shaft furnaces, in pa...
Patent number
4,360,305
Issue date
Nov 23, 1982
Mannesmann Demag AG
Georg Dorsch
C21 - METALLURGY OF IRON
Information
Patent Grant
Lining apparatus for metallurgical vessels, particularly for steel...
Patent number
4,354,670
Issue date
Oct 19, 1982
Mannesmann Demag AG
Gerhard Eichbaum
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for regulating the quantities and percentages of the gase...
Patent number
4,354,669
Issue date
Oct 19, 1982
Mannesmann Demag AG
Gunter Ratschat
C21 - METALLURGY OF IRON
Information
Patent Grant
Mounting for a driven wheel
Patent number
4,353,606
Issue date
Oct 12, 1982
Mannesmann Demag AG
Harald Bitsch
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Mobile delivery flow equalizer
Patent number
4,350,241
Issue date
Sep 21, 1982
Mannesmann Demag, A.G.
Jurgen-Michael Wenzel
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Method for providing oxygen enhanced air for use in metallurgical p...
Patent number
4,345,939
Issue date
Aug 24, 1982
Mannesmann Demag AG
Gunter Ratschat
C21 - METALLURGY OF IRON
Information
Patent Grant
Claw clutch
Patent number
4,344,515
Issue date
Aug 17, 1982
Mannesmann Demag AG
Hugo Grote
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Cover for vessel for a metal melting furnace, in particular an elec...
Patent number
4,345,332
Issue date
Aug 17, 1982
Mannesmann Demag AG
Bodo Wronka
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Turbulent-water way
Patent number
4,337,704
Issue date
Jul 6, 1982
Mannesmann Demag AG
Klaus Becker
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Apparatus for manufacturing steel from iron ore dust by direct redu...
Patent number
4,324,390
Issue date
Apr 13, 1982
Mannesmann Demag AG
Manfred Driemeyer
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing steel from iron ore dust by direct reduction
Patent number
4,318,736
Issue date
Mar 9, 1982
Mannesmann Demag AG
Manfred Driemeyer
C21 - METALLURGY OF IRON
Information
Patent Grant
Brake for a slide coaster sled
Patent number
4,311,215
Issue date
Jan 19, 1982
Mannesmann Demag AG
Klaus Becker
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Mobile delivery flow unifier
Patent number
4,310,278
Issue date
Jan 12, 1982
Mannesmann Demag AG
Jurgen M. Wenzel
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Apparatus for fanning out wire coils
Patent number
4,310,031
Issue date
Jan 12, 1982
Mannesmann Demag AG
Manfred Appel
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Switch apparatus for activating switch contacts
Patent number
4,307,269
Issue date
Dec 22, 1981
Mannesmann Demag AG
Dirk Rotthaus
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Monorail system
Patent number
4,304,187
Issue date
Dec 8, 1981
Mannesmann Demag AG
Klaus Becker
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Transport apparatus for heavy open-cast working equipment
Patent number
4,303,140
Issue date
Dec 1, 1981
Mannesmann Demag AG
Rudiger Franke
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Ozone pipe for ozone production plant
Patent number
4,293,775
Issue date
Oct 6, 1981
Mannesmann Demag AG
Ewald Feuerstake
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Transport lift truck for metallurgical vessels, particularly steel...
Patent number
4,268,014
Issue date
May 19, 1981
Mannesmann Demag AG
Karlheinz Langlitz
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75166090 - CONTIARC
Serial number
75166090
Registration number
2140265
Filing date
Sep 16, 1996
Mannesmann Demag AG
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
74255928 - AQUADIGGER
Serial number
74255928
Registration number
1795604
Filing date
Mar 16, 1992
MANNESMANN DEMAG AG
7 - Machines and machine tools
Information
Trademark
74229578 - MW
Serial number
74229578
Registration number
1894266
Filing date
Dec 10, 1991
Mannesmann Demag AG
35 - Advertising
Information
Trademark
74229576 - MANNESMANN
Serial number
74229576
Registration number
1900815
Filing date
Dec 10, 1991
Mannesmann Demag AG
35 - Advertising
Information
Trademark
73796132 - MESSO
Serial number
73796132
Registration number
1596099
Filing date
Apr 27, 1989
Mannesmann Demag AG
7 - Machines and machine tools
Information
Trademark
73763923 - XPS
Serial number
73763923
Registration number
1639517
Filing date
Nov 16, 1988
Mannesmann Demag AG
7 - Machines and machine tools
Information
Trademark
73687653 - XPS XROSS PIT SPREADER
Serial number
73687653
Filing date
Oct 2, 1987
Mannesmann Demag AG
7 - Machines and machine tools
Information
Trademark
73649785 - HOPPER SPREADER
Serial number
73649785
Registration number
1540122
Filing date
Mar 17, 1987
Mannesmann Demag AG
7 - Machines and machine tools
Information
Trademark
73627430 - DEMATIK
Serial number
73627430
Registration number
1584335
Filing date
Oct 24, 1986
Mannesmann Demag AG
7 - Machines and machine tools
Information
Trademark
73436689 - AQUADIGGER
Serial number
73436689
Registration number
1326566
Filing date
Jul 28, 1983
Mannesmann Demag AG
7 - Machines and machine tools
Information
Trademark
73325888 - ALPINE LECTRAPORTER
Serial number
73325888
Filing date
Aug 31, 1981
MANNESMANN DEMAG AG
12 - Vehicles