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Oulu, FI
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Patents Grants
last 30 patents
Information
Patent Grant
Process system for separating chemicals, distillation column arrang...
Patent number
10,441,897
Issue date
Oct 15, 2019
Chempolis Oy
Juha Tanskanen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing pulp
Patent number
7,097,738
Issue date
Aug 29, 2006
Chempolis Oy
Esa Rousu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing furfural, acetic acid and formic acid from spe...
Patent number
6,955,743
Issue date
Oct 18, 2005
Chempolis Oy
Esa Rousu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for recovering organic acids from bleaching liquors
Patent number
6,923,888
Issue date
Aug 2, 2005
Chempolis Oy
Pasi Rousu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for producing pulp with a mixture of formic acid and acetic...
Patent number
6,562,191
Issue date
May 13, 2003
Chempolis Oy
Pasi Rousu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for producing cellulose and fertilizer by-product
Patent number
6,503,369
Issue date
Jan 7, 2003
Chempolis Oy
Pasi P. Rousu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for the recovery of formic acid
Patent number
6,252,109
Issue date
Jun 26, 2001
Chempolis Oy
Pasi Petteri Rousu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of producing pulp using single-stage cooking with formic aci...
Patent number
6,156,156
Issue date
Dec 5, 2000
Chempolis Oy
Pasi Rousu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
PROCESS SYSTEM FOR SEPARATING CHEMICALS, DISTILLATION COLUMN ARRANG...
Publication number
20160175735
Publication date
Jun 23, 2016
Chempolis Oy
Juha Tanskanen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Pretreatment Method for Producing Water-Soluble Sugars From Lignoce...
Publication number
20130078695
Publication date
Mar 28, 2013
Chempolis Oy
Janne Sandqvist
C13 - SUGAR INDUSTRY
Information
Patent Application
Process for producing cellulose, and by-product
Publication number
20020069983
Publication date
Jun 13, 2002
Chempolis Oy
Pasi P. Rousu
C05 - FERTILISERS MANUFACTURE THEREOF
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last 30 trademarks