Membership
Tour
Register
Log in
Hannu Virtanen
Follow
Person
Tampere, FI
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Method for handling filled reject flows in a paper or paperboard mill
Patent number
6,843,886
Issue date
Jan 18, 2005
Megatrex Oy
Mauno Huovinen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus of defibrating a fibre-containing material
Patent number
6,202,946
Issue date
Mar 20, 2001
Megatrex Oy
Hannu Virtanen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE