Stefan Ehrhardt

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Winnenden, DE

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Patents Grantslast 30 patents

Information Patent Grant
Heatable high pressure cleaning appliance
- Patent number 11,897,010
- Issue date Feb 13, 2024
- Alfred Kärcher SE & Co. KG
- Stefan Kelle
- B08 - CLEANING
Information Patent Grant
Mobile high-pressure cleaning apparatus
- Patent number 10,293,383
- Issue date May 21, 2019
- Alfred Kärcher SE Co. KG
- Ronald Krauter
- B08 - CLEANING
Information Patent Grant
Heat exchanger and method for its manufacture
- Patent number 9,841,244
- Issue date Dec 12, 2017
- Alfred Kärcher GmbH & Co. KG
- Michael Boehm
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
HEATABLE HIGH PRESSURE CLEANING APPLIANCE
- Publication number 20210187562
- Publication date Jun 24, 2021
- Alfred Kärcher SE & Co. KG
- Stefan Kelle
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
MOBILE HIGH-PRESSURE CLEANING APPARATUS
- Publication number 20170120305
- Publication date May 4, 2017
- Alfred Karcher GmbH & Co. KG
- Ronald Krauter
- B08 - CLEANING
Information Patent Application
HEAT EXCHANGER AND METHOD FOR ITS MANUFACTURE
- Publication number 20140054015
- Publication date Feb 27, 2014
- Alfred Karcher GmbH & Co. KG
- Michael Boehm
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...