Ingrid Ewald

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Hirschberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Multi-layer composite for use in an air filter
- Patent number 9,180,394
- Issue date Nov 10, 2015
- Carl Freudenberg KG
- Heiko Manstein
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
MULTI-LAYER COMPOSITE FOR USE IN AN AIR FILTER
- Publication number 20100119794
- Publication date May 13, 2010
- Carl Freudenberg KG
- Heiko Manstein
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS