Pentti Virtanen

Person

Porvoo, FI

People

Patents Grantslast 30 patents

Information Patent Grant
Use of acidic water in the manufacture of paper
- Patent number 8,906,201
- Issue date Dec 9, 2014
- Nordkalk Oy Ab
- Sakari Saastamoinen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for manufacturing paper or board
- Patent number 8,758,566
- Issue date Jun 24, 2014
- Nordkalk Oy Ab
- Pentti Virtanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and apparatus for the preparation of finely divided calcium...
- Patent number 8,480,018
- Issue date Jul 9, 2013
- Fractivator Oy
- Pentti Virtanen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Impact mill
- Patent number 8,474,738
- Issue date Jul 2, 2013
- Fractivator Oy
- Pentti Virtanen
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Reinforced porous fibre product
- Patent number 8,354,003
- Issue date Jan 15, 2013
- Nordkalk Oy Ab
- Pentti Virtanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aqueous suspension based on hydraulic binder and a process for the...
- Patent number 8,192,542
- Issue date Jun 5, 2012
- Nordkalk Oyj ABP
- Pentti Virtanen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR MANUFACTURING PAPER AND BOARD
- Publication number 20130199745
- Publication date Aug 8, 2013
- NORDKALK OY AB
- Pentti Virtanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS FOR MANUFACTURING PAPER OR BOARD
- Publication number 20130112360
- Publication date May 9, 2013
- NORDKALK OY AB
- Pentti Virtanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
USE OF ACIDIC WATER IN THE MANUFACTURE OF PAPER
- Publication number 20130062028
- Publication date Mar 14, 2013
- NORDKALK OY AB
- Sakari Saastamoinen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD AND APPARATUS FOR THE PREPARATION OF FINELY DIVIDED CALCIUM...
- Publication number 20110192921
- Publication date Aug 11, 2011
- Pentti Virtanen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
REINFORCED POROUS FIBRE PRODUCT
- Publication number 20110061827
- Publication date Mar 17, 2011
- Kautar Oy
- Pentti Virtanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
AQUEOUS SUSPENSION BASED ON HYDRAULIC BINDER AND A PROCESS FOR THE...
- Publication number 20090090278
- Publication date Apr 9, 2009
- NORDKALK OYJ ABP
- Pentti Virtanen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
PROCESS AND APPARATUS FOR PRODUCING SUSPENSIONS OF SOLID MATTER
- Publication number 20090081112
- Publication date Mar 26, 2009
- NORDKALK OYJ ABP
- Pentti Virtanen
- B82 - NANO-TECHNOLOGY

Pentti Virtanen

Person

Patents Grantslast 30 patents

Use of acidic water in the manufacture of paper

Process for manufacturing paper or board

Method and apparatus for the preparation of finely divided calcium...

Impact mill

Reinforced porous fibre product

Aqueous suspension based on hydraulic binder and a process for the...

Patents Applicationslast 30 patents

PROCESS FOR MANUFACTURING PAPER AND BOARD

PROCESS FOR MANUFACTURING PAPER OR BOARD

USE OF ACIDIC WATER IN THE MANUFACTURE OF PAPER

METHOD AND APPARATUS FOR THE PREPARATION OF FINELY DIVIDED CALCIUM...

REINFORCED POROUS FIBRE PRODUCT

AQUEOUS SUSPENSION BASED ON HYDRAULIC BINDER AND A PROCESS FOR THE...

PROCESS AND APPARATUS FOR PRODUCING SUSPENSIONS OF SOLID MATTER