Helmut Janz

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Viersen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Indirectly heated rotary tubular kiln
- Patent number 4,781,580
- Issue date Nov 1, 1988
- Bayer Aktiengesellschaft
- Helmut Janz
- F26 - DRYING
Information Patent Grant
Use of novel rotary tubular kiln
- Patent number 4,629,500
- Issue date Dec 16, 1986
- Bayer Aktiengesellschaft
- Helmut Janz
- F26 - DRYING