Helmut Roland Letzel

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Herschweiler-Pettersheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Extrusion components for honeycomb bodies
- Patent number 11,045,975
- Issue date Jun 29, 2021
- Corning Incorporated
- John Wilbur Allard
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS FOR EXTRUDING HONEYCOMB BODIES, METHODS OF ASSEMBLING APP...
- Publication number 20200269466
- Publication date Aug 27, 2020
- Corning Incorporated
- Jan HODEL
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
EXTRUSION COMPONENTS FOR HONEYCOMB BODIES
- Publication number 20190054654
- Publication date Feb 21, 2019
- Corning Incorporated
- John Wilbur Allard
- B28 - WORKING CEMENT, CLAY, OR STONE