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Roger Hulsmann
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Oelde, DE
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Patents Grants
last 30 patents
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Patent Grant
Screw-type solid bowl centrifuge
Patent number
7,549,957
Issue date
Jun 23, 2009
Westfalia Separator GmnH
Steffen Hruschka
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Screw for a solid-bowl centrifuge and a method of extracting oil us...
Patent number
6,908,423
Issue date
Jun 21, 2005
Westfalia Separator AG
Steffen Hruschka
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Patents Applications
last 30 patents
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Patent Application
Screw-Type Solid Bowl Centrifuge
Publication number
20080312060
Publication date
Dec 18, 2008
Westfalia Separator GmbH
Steffen Hruschka
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Screw for a screw-type solid bowl centrifuge and method for produci...
Publication number
20030129042
Publication date
Jul 10, 2003
Steffen Hruschka
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC