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Patents Grants
last 30 patents
Information
Patent Grant
Assembly for combustion chamber monitoring camera
Patent number
5,831,668
Issue date
Nov 3, 1998
Imatran Voima Oy
Juhani Hirvonen
G02 - OPTICS
Information
Patent Grant
Fastening and lifting system for a battery pack of an electric car
Patent number
5,806,618
Issue date
Sep 15, 1998
Imatran Voima Oy
Voitto Luode
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Filtering system
Patent number
5,705,054
Issue date
Jan 6, 1998
Imatran Voima Oy
Timo Hyrsky
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and device in the cooling of the circulating material in a f...
Patent number
5,660,148
Issue date
Aug 26, 1997
Imatran Voima Oy
Markku Raiko
F22 - STEAM GENERATION
Information
Patent Grant
Method and configuration for facilitating the fuel feed into a pres...
Patent number
5,655,466
Issue date
Aug 12, 1997
Imatran Voima Oy
Seppo Hulkkonen
F26 - DRYING
Information
Patent Grant
Optical voltage and electric field sensor based on the pockels effect
Patent number
5,635,831
Issue date
Jun 3, 1997
Imatran Voima Oy
Marja Englund
G01 - MEASURING TESTING
Information
Patent Grant
Assembly for combustion chamber monitoring camera
Patent number
5,592,217
Issue date
Jan 7, 1997
Imatran Voima Oy
Juhani Hirvonen
G02 - OPTICS
Information
Patent Grant
Method and apparatus for drying the fuel of a fluidizied-bed boiler
Patent number
5,419,267
Issue date
May 30, 1995
Imatran Voima Oy
Markku Raiko
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Assembly for guiding different kinds of equipment around elongated...
Patent number
5,385,508
Issue date
Jan 31, 1995
Imatran Voima Oy
Lauri Pietikainen
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for the reduction of distance-dependent voltag...
Patent number
5,300,749
Issue date
Apr 5, 1994
Imatran Voima Oy
Kauko Kotikangas
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Drying method in a power-plant process and dryer used in the method
Patent number
5,253,432
Issue date
Oct 19, 1993
Imatran Voima Oy
Markku Raiko
F26 - DRYING
Information
Patent Grant
Method and apparatus for measuring alignment status
Patent number
5,194,920
Issue date
Mar 16, 1993
Imatran Voima Oy
Raimo Mattila
G01 - MEASURING TESTING
Information
Patent Grant
Combined gas-turbine and steam-turbine power plant and method for u...
Patent number
5,175,993
Issue date
Jan 5, 1993
Imatran Voima Oy
Markku Raiko
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Method and apparatus for starting the boiler of a solid-fuel fired...
Patent number
5,156,100
Issue date
Oct 20, 1992
Imatran Voima Oy
Salmelin Pentti
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Method and apparatus for measuring alignment status
Patent number
5,127,738
Issue date
Jul 7, 1992
Imatran Voima Oy
Raimo Mattila
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for heating a dielectric web or sheet material or for dec...
Patent number
5,074,055
Issue date
Dec 24, 1991
Imatran Voima Oy
Markku Peraniitty
F26 - DRYING
Information
Patent Grant
Method of image analysis in pulverized fuel combustion
Patent number
4,907,281
Issue date
Mar 6, 1990
Imatran Voima Oy
Juhani Hirvonen
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Procedure and means for drying moving web material
Patent number
4,882,852
Issue date
Nov 28, 1989
Imatran Voima Oy
Jorma Kautto
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Gas turbine power plant fired by a water-bearing fuel and method fo...
Patent number
4,866,928
Issue date
Sep 19, 1989
Imatran Voima Oy
Markku Raiko
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method for volume reduction of low activity organic wastes from nuc...
Patent number
4,861,519
Issue date
Aug 29, 1989
Imatran Voima Oy
Esko Tusa
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Method and apparatus for the levelling of the humidity profile of a...
Patent number
4,823,477
Issue date
Apr 25, 1989
Imatran Voima Oy
Mauri Soininen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for the utilization of heat energy released in...
Patent number
4,771,612
Issue date
Sep 20, 1988
Imatran Voima Oy
Pentti Kurikka
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Air turbine for preventing formation of ice on air exposed turbine...
Patent number
4,747,748
Issue date
May 31, 1988
Imatran Voima Oy
Per-Holger Sahlberg
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method and apparatus for the measurement of the properties of sheet...
Patent number
4,739,249
Issue date
Apr 19, 1988
Imatran Voima Oy
Ebbe G. Nyfors
G01 - MEASURING TESTING
Information
Patent Grant
Procedure for ceramizing radioactive wastes
Patent number
4,632,778
Issue date
Dec 30, 1986
Imatran Voima Oy
Jukka K. Lehto
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75268342 - POWERMORTAR
Serial number
75268342
Registration number
2224745
Filing date
Apr 1, 1997
IMATRAN VOIMA OY
19 - Building materials (non-metallic)
Information
Trademark
74736678 - T DAS
Serial number
74736678
Registration number
2248440
Filing date
Sep 27, 1995
IMATRAN VOIMA OY
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments