Tapani Niiranen

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Savonlinna, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for improving the operation of a disc filter
- Patent number 4,995,991
- Issue date Feb 26, 1991
- Ahlstrom Corporation
- Risto Ljokkoi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Disc filter
- Patent number 4,678,574
- Issue date Jul 7, 1987
- Enzo-Gutzeit OY
- Tapani Niiranen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL