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Burkhard Hasenack
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Hagen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Suspended control device
Patent number
7,504,602
Issue date
Mar 17, 2009
Demag Cranes & Components GmbH
Michael Röhr
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Method of monitoring a chain pulley block and chain pulley block ap...
Patent number
7,422,542
Issue date
Sep 9, 2008
Demag Cranes & Components GmbH
Holger Freitag
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Interface circuit for actuating an electrical device and circuit ar...
Patent number
7,126,307
Issue date
Oct 24, 2006
Demag Cranes & Components GmbH
Holger Freitag
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Drive arrangement, especially for a lifting mechanism and/or a trav...
Patent number
7,068,009
Issue date
Jun 27, 2006
Demag Cranes & Components GmbH
Holger Freitag
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Operating device for manual actuation of hoisting equipment
Patent number
6,972,385
Issue date
Dec 6, 2005
Demag Cranes & Components GmbH
Wolfgang Krebs
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Suspended control device
Publication number
20060180562
Publication date
Aug 17, 2006
Michael Rohr
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Method of monitoring a chain pulley block and chain pulley block ap...
Publication number
20050065692
Publication date
Mar 24, 2005
Holger Freitag
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Operating device for manual actuation of hoisting equipment
Publication number
20050034966
Publication date
Feb 17, 2005
Wolfgang Krebs
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Drive arrangement, especially for a lifting mechanism and/or a trav...
Publication number
20050012483
Publication date
Jan 20, 2005
Holger Freitag
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Interface circuit for actuating an electrical device and circuit ar...
Publication number
20040239286
Publication date
Dec 2, 2004
Holger Freitag
B66 - HOISTING LIFTING HAULING