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Hans Renz
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Filderstadt, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Hydraulic system with suction/return filter
Patent number
9,551,362
Issue date
Jan 24, 2017
Putzmeister Engineering GmbH
Jan-Martin Veit
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Hydraulic drive, in particular for two-cylinder thick matter pumps
Patent number
7,401,466
Issue date
Jul 22, 2008
Putzmeister Aktiengesellschaft
Paul Von Baeumen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Telescoping boom with moving flexible 180° bend
Patent number
6,983,763
Issue date
Jan 10, 2006
Putzmeister Aktiengesellschaft
Hartmut Benckert
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Hydraulic pressure supply and control device for a mobile concrete...
Patent number
5,640,850
Issue date
Jun 24, 1997
Putzmeister-Werk Maschinenfabrik GmbH
Hartmut Benckert
E04 - BUILDING
Information
Patent Grant
Hydraulic control device for a viscous fluid pump
Patent number
5,520,521
Issue date
May 28, 1996
Putzmeister-Werk Maschinenfabrik GmbH
Hartmut Benckert
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
Information
Patent Application
HYDRAULIC SYSTEM WITH SUCTION/RETURN FILTER
Publication number
20140230424
Publication date
Aug 21, 2014
Putzmeister Engineering GmbH
Jan-Martin Veit
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Application
Hydraulic Drive, in Particular for Two-Cylinder Thick Matter Pumps
Publication number
20070204608
Publication date
Sep 6, 2007
Putzmeister Aktiengesellschaft
Paul Von Baumen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Distributor device for thick matter
Publication number
20040148814
Publication date
Aug 5, 2004
Hartmut Benckert
E04 - BUILDING