Ralf Stier

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Neuenstadt a.K., DE

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Patents Grantslast 30 patents

Information Patent Grant
Cooling of a piston by means of sodium-filled tubes
- Patent number 10,787,990
- Issue date Sep 29, 2020
- KS Kolbenschmidt GmbH
- Ralf Stier
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Piston Having Three Ring Grooves And A Further Groove Having A Joint
- Publication number 20190022739
- Publication date Jan 24, 2019
- KS Kolbenschmidt GmbH
- Emmerich Ottliczky
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Cooling of a Piston by Means of Sodium-Filled Tubes
- Publication number 20180252182
- Publication date Sep 6, 2018
- KS Kolbenschmidt GmbH
- Ralf Stier
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS