Pentti Virtanen

Person

Toijala, FI

People

Patents Grantslast 30 patents

Information Patent Grant
Binder admixture, kaolin product and their manufacture
- Patent number 7,575,630
- Issue date Aug 18, 2009
- Kautar Oy
- Pentti Virtanen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Paper having a cellulosic fiber layer treated with elementary parti...
- Patent number 7,198,841
- Issue date Apr 3, 2007
- Metso Paper Oy
- Vilho Nissinen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for making a web of paper or board containing calcium car...
- Patent number 6,787,196
- Issue date Sep 7, 2004
- Metso Paper Oy
- Vilho Nissinen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for preparing precipitated calcium carbonate
- Patent number 6,761,869
- Issue date Jul 13, 2004
- FP-Pigments Oy
- Pentti Virtanen
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for preparing and modifying synthetic calcium carbonate
- Patent number 6,699,318
- Issue date Mar 2, 2004
- FP-Pigments Oy
- Pentti Virtanen
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for making paper, assembly for implementing the method and p...
- Patent number 6,680,086
- Issue date Jan 20, 2004
- Mesto Paper Oy
- Vilho Nissinen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Precipitated calcium carbonate and method for the production thereof
- Patent number 6,602,484
- Issue date Aug 5, 2003
- FP-Pigments Oy
- Pentti Virtanen
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Process for preparing calcium carbonate particles
- Patent number 6,475,459
- Issue date Nov 5, 2002
- FP-Pigments Oy
- Pentti Virtanen
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Apparatus and process for the preparation of precipitated calcium c...
- Patent number 6,416,727
- Issue date Jul 9, 2002
- FP-Pigments Oy
- Pentti Virtanen
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Pigment particles coated with precipitated calcium carbonate and a...
- Patent number 6,143,064
- Issue date Nov 7, 2000
- FP-Pigments Oy
- Pentti Virtanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Prestressed construction element of composite structure and method...
- Patent number 4,999,959
- Issue date Mar 19, 1991
- Kautar Oy
- Pentti Virtanen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for producing hardened cement mineral material, especially c...
- Patent number 4,968,349
- Issue date Nov 6, 1990
- Kautar Oy
- Pentti Virtanen
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Apparatus for the manufacture of a precast building element of conc...
- Patent number 4,540,358
- Issue date Sep 10, 1985
- Pentti Virtanen
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method and apparatus for manufacturing concrete elements
- Patent number 4,126,655
- Issue date Nov 21, 1978
- Pentti E. E. Virtanen
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
ACIDIC WATER AND ITS USE FOR DRAINAGE OR SEPARATION OF SOLIDS
- Publication number 20110233124
- Publication date Sep 29, 2011
- Pentti Virtanen
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
BINDER ADMIXTURE, KAOLIN PRODUCT AND THEIR MANUFACTURE
- Publication number 20090158962
- Publication date Jun 25, 2009
- Kautar Oy
- Pentti Virtanen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Binder admixture, kaolin product and their manufacture
- Publication number 20050000393
- Publication date Jan 6, 2005
- Pentti Virtanen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Paper, board or non-woven product having a cellulosic fiber layer t...
- Publication number 20040096649
- Publication date May 20, 2004
- Metso Paper Oy
- Vilho Nissinen
- B82 - NANO-TECHNOLOGY
Information Patent Application
Apparatus for making a web of paper or board containing calcium car...
- Publication number 20040083950
- Publication date May 6, 2004
- Valmet Corporation
- Vilho Nissinen
- B82 - NANO-TECHNOLOGY
Information Patent Application
Use of recycled calcium carbonate in the treatment of a paper, boar...
- Publication number 20040079503
- Publication date Apr 29, 2004
- Valmet Corporation
- Vilho Nissinen
- B82 - NANO-TECHNOLOGY
Information Patent Application
Method for treating a paper or board web with a treatment material
- Publication number 20040074620
- Publication date Apr 22, 2004
- Valmet Corporation
- Vilho Nissinen
- B82 - NANO-TECHNOLOGY

Pentti Virtanen

Person

Patents Grantslast 30 patents

Binder admixture, kaolin product and their manufacture

Paper having a cellulosic fiber layer treated with elementary parti...

Apparatus for making a web of paper or board containing calcium car...

Process for preparing precipitated calcium carbonate

Process for preparing and modifying synthetic calcium carbonate

Method for making paper, assembly for implementing the method and p...

Precipitated calcium carbonate and method for the production thereof

Process for preparing calcium carbonate particles

Apparatus and process for the preparation of precipitated calcium c...

Pigment particles coated with precipitated calcium carbonate and a...

Prestressed construction element of composite structure and method...

Method for producing hardened cement mineral material, especially c...

Apparatus for the manufacture of a precast building element of conc...

Method and apparatus for manufacturing concrete elements

Patents Applicationslast 30 patents

ACIDIC WATER AND ITS USE FOR DRAINAGE OR SEPARATION OF SOLIDS

BINDER ADMIXTURE, KAOLIN PRODUCT AND THEIR MANUFACTURE

Binder admixture, kaolin product and their manufacture

Paper, board or non-woven product having a cellulosic fiber layer t...

Apparatus for making a web of paper or board containing calcium car...

Use of recycled calcium carbonate in the treatment of a paper, boar...

Method for treating a paper or board web with a treatment material