Johann Niggemann

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Leverkusen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Heat-curable reaction resin mixtures and the use thereof
- Patent number 5,468,832
- Issue date Nov 21, 1995
- Bayer Aktiengesellschaft
- Lutz Schrader
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Device for producing a solid-forming or foaming flowable reaction m...
- Patent number 4,378,335
- Issue date Mar 29, 1983
- Bayer Aktiengesellschaft
- Heinrich Boden
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and a device for producing shaped articles from a multi-comp...
- Patent number 4,314,963
- Issue date Feb 9, 1982
- Bayer Aktiengesellschaft
- Heinrich Boden
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL