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Inventor

LJOKKOI RISTO

FI11 patents
⚠️ This page may combine multiple inventors who share the name “LJOKKOI RISTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AHLSTROEM OY

6 patents
US5575395ANov 19, 1996

Method and apparatus for screening fibrous suspensions

AHLSTROEM OY20 citations86
US5547083AAug 20, 1996

Apparatus for treating fiber suspension

AHLSTROEM OY33 citations86
US5224603AJul 6, 1993

Apparatus for treating fiber suspension

AHLSTROEM OY23 citations86
US5338451AAug 16, 1994

Apparatus for treating pulp

AHLSTROEM OY20 citations85
US5094715AMar 10, 1992

Arrangement for removing thread-like impurities from a defiberizing drum

AHLSTROEM OY9 citations65
US4995991AFeb 26, 1991

Method and apparatus for improving the operation of a disc filter

AHLSTROEM OY15 citations65

ANDRITZ AHLSTROM OY

2 patents
US6340805B1Jan 22, 2002

Method of manufacturing a wire screen product

ANDRITZ AHLSTROM OY19 citations91
US7229527B2Jun 12, 2007

Method for the controlled thickening of low consistency fiber suspensions

ANDRITZ AHLSTROM OY3 citations60

AHLSTROM MACHINERY OY

2 patents
US6119867ASep 19, 2000

Screen cylinder

AHLSTROM MACHINERY OY20 citations88
US5960962AOct 5, 1999

Screen

AHLSTROM MACHINERY OY5 citations61

ANDRITZ OY

1 patent
US6767432B1Jul 27, 2004

Apparatus for the thickening of fiber suspensions

ANDRITZ OY9 citations71