Eric G. Hartnagle

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Troy, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for welding foils
- Patent number 11,710,879
- Issue date Jul 25, 2023
- GM Global Technology Operations LLC
- Chih-chang Chen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Elimination of tool adhesion in an ultrasonic welding process
- Patent number 9,573,221
- Issue date Feb 21, 2017
- GM Global Technology Operations LLC
- Michael P. Balogh
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR WELDING FOILS
- Publication number 20220328938
- Publication date Oct 13, 2022
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Chih-chang Chen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ELIMINATION OF TOOL ADHESION IN AN ULTRASONIC WELDING PROCESS
- Publication number 20150375334
- Publication date Dec 31, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Michael P. Balogh
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR