Walter Koellner

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Suwanee, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for reinjection of retard energy in a trolley-bas...
- Patent number 8,550,008
- Issue date Oct 8, 2013
- Siemens Industry, Inc.
- Joy Mazumdar
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method for powering mining equipment
- Patent number 7,398,012
- Issue date Jul 8, 2008
- Siemens Energy & Automation, Inc.
- Walter Koellner
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
System for powering mining equipment
- Publication number 20050253551
- Publication date Nov 17, 2005
- Walter Koellner
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Method for powering mining equipment
- Publication number 20050254801
- Publication date Nov 17, 2005
- Walter Koellner
- B60 - VEHICLES IN GENERAL