Inventor

LAAKSO RICHARD

US5 patents

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

AHLSTROM MACHINERY INC

2 patents

US5882477AMar 16, 1999

Continuous digester with a low temperature gas-phase

AHLSTROM MACHINERY INC29 citations91

US6024837AFeb 15, 2000

Low temperature gas phase continuous digester

AHLSTROM MACHINERY INC14 citations73

ANDRITZ AHLSTROM INC

1 patent

US6174411B1Jan 16, 2001

Continuous digester with inverted top separator

ANDRITZ AHLSTROM INC29 citations91

KAMYR INC

1 patent

US5328564AJul 12, 1994

Modified digestion of paper pulp followed by ozone bleaching

KAMYR INC10 citations70

ANDRITZ INC

1 patent

US6582554B1Jun 24, 2003

Continuous digester having a sectioned top separator with multiple liquor extraction ports

ANDRITZ INC3 citations61