Erkki Savolainen

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Haapakallio, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for treating a fiber suspension
- Patent number RE36297
- Issue date Sep 14, 1999
- A. Ahlstrom Corporation
- Jukka Heino
- 210 - Liquid purification or separation
Information Patent Grant
Method and apparatus for treating a fiber suspension
- Patent number 5,264,138
- Issue date Nov 23, 1993
- A. Ahlstrom Corporation
- Jukka Heino
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for treating pulp
- Patent number 5,139,671
- Issue date Aug 18, 1992
- A. Ahlstrom Corporation
- Kaj O. Henricson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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
Apparatus for treating pulp
- Patent number 4,952,314
- Issue date Aug 28, 1990
- A. Ahlstrom Corporation
- Kaj O. Henricson
- 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
Information Patent Grant
Feed and accept duct system for hydrocyclones
- Patent number 4,608,174
- Issue date Aug 26, 1986
- Enso-Gutzeit OY
- Seppo Kokkonen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE