Leif Robertsen

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Parainen, FI

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Patents Grantslast 30 patents

Information Patent Grant
Process for treating pulp
- Patent number 11,072,886
- Issue date Jul 27, 2021
- Kemira Oyj
- Leif Robertsén
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Manufacturing of microcellulose
- Patent number 9,587,038
- Issue date Mar 7, 2017
- Kemira Oyj
- Erkki Iikka Sakari Rasanen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PITCH CONTROL DURING BLEACHING
- Publication number 20230212821
- Publication date Jul 6, 2023
- KEMIRA OYJ
- Leif ROBERTSEN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
A process for treating pulp
- Publication number 20190186075
- Publication date Jun 20, 2019
- KEMIRA OYJ
- Leif ROBERTSÉN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for reducing pulp viscosity in production of dissolving pulp
- Publication number 20180163344
- Publication date Jun 14, 2018
- KEMIRA OYJ
- Leif Robertsen
- C07 - ORGANIC CHEMISTRY
Information Patent Application
MANUFACTURING OF MICROCELLULOSE
- Publication number 20140179912
- Publication date Jun 26, 2014
- Erkki Iikka Sakari Rasanen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR PRODUCING MICROCELLULOSE
- Publication number 20130112193
- Publication date May 9, 2013
- Asko Karppi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...