David Leo Sigl

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Waterloo, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic lubrication filter circuit
- Patent number 7,553,408
- Issue date Jun 30, 2009
- Deere & Company
- Dwayne Alan Nystrom
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Selectable detent relief valve
- Patent number 6,976,504
- Issue date Dec 20, 2005
- Sauer-Danfoss Inc.
- Dennis O. Courtright
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic lubrication filter circuit
- Publication number 20070209982
- Publication date Sep 13, 2007
- Deere & Company, a Delaware corporation
- Dwayne Alan Nystrom
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
Selectable detent relief valve
- Publication number 20040206407
- Publication date Oct 21, 2004
- Sauer-Danfoss Inc.
- Dennis O. Courtright
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL