Assignee
VALMET OY
FI342 patents
Top patents by PatentIndex Score
US4976821ADec 11, 1990
Press section with separate press zones in a paper machine
VALMET OY78 citations96
US4576682AMar 18, 1986
Long-nip press for a paper making machine
VALMET OY71 citations96
US4568423AFeb 4, 1986
Apparatus with a long press zone in the press treatment of a web
VALMET OY59 citations96
US4202113AMay 13, 1980
Paper machine drying section and method for operating same
VALMET OY79 citations96
US4781793ANov 1, 1988
Method for improving paper properties in multiply paper using long and short fiber layers
VALMET OY55 citations95
US4675487AJun 23, 1987
Apparatus and method for electromagnetic heating of a roll
VALMET OY58 citations94
US4586984AMay 6, 1986
Press section for a fibrous web
VALMET OY27 citations93
US4441263AApr 10, 1984
Device in the drying section of a paper machine
VALMET OY88 citations93
US3968727AJul 13, 1976
Firearm with gas-operable structure and relief valve
VALMET OY65 citations93
US4931143AJun 5, 1990
Press section with separate press nips in a paper machine
VALMET OY31 citations92
US4854052AAug 8, 1989
Floater radiation dryer
VALMET OY38 citations92
US4793250ADec 27, 1988
Method and apparatus for controlling deflection of an adjustable crown roll
VALMET OY29 citations92
US4693784ASep 15, 1987
Suction roll and method for applying a negative pressure over a sector of a roll
VALMET OY34 citations92
US4692215ASep 8, 1987
Apparatus for conveying a web lead-in strip in a paper machine
VALMET OY38 citations92
US4602439AJul 29, 1986
Method and apparatus for supporting a web in high-speed paper machines
VALMET OY32 citations92
US4551203ANov 5, 1985
Method and arrangement for guiding a paper web from the press section to the drying section
VALMET OY41 citations92
US4543160ASep 24, 1985
Method and device for guiding the leader of the web in the drying section of a paper machine
VALMET OY30 citations92
US4539762ASep 10, 1985
Pocket ventilating apparatus for a multi-cylinder dryer of a paper machine
VALMET OY37 citations92
US4526655AJul 2, 1985
Press section with separate press nips in a paper machine
VALMET OY48 citations92
US4464226AAug 7, 1984
Paper machine press with a wide pressing zone
VALMET OY40 citations92
US4391672AJul 5, 1983
Method used in paper making for treatment of a weave
VALMET OY49 citations92
US4332191AJun 1, 1982
Calender
VALMET OY39 citations92
US4229250AOct 21, 1980
Method of improving properties of mechanical paper pulp without chemical reaction therewith
VALMET OY52 citations92
US4183148AJan 15, 1980
Paper machine drying section and method of operating the same
VALMET OY34 citations92
US4163688AAug 7, 1979
Apparatus for dewatering in a paper machine
VALMET OY39 citations92
US4154645AMay 15, 1979
Method and machine for manufacturing multilayer paper board
VALMET OY42 citations92
US4144124AMar 13, 1979
Machine for manufacturing paper such as tissue paper
VALMET OY69 citations92
US4113557ASep 12, 1978
Paper manufacturing structure particularly for detaching a web from a wire
VALMET OY34 citations92
US9410287B2Aug 9, 2016
Paper making machine, an extended nip roll and a method of producing tissue paper
VALMET OY32 citations91
US4748736AJun 7, 1988
Method for manufacturing a press roll
VALMET OY27 citations91
US4614566ASep 30, 1986
Web-forming section in a paper machine
VALMET OY26 citations91
US4608125AAug 26, 1986
Frame construction in a paper machine press section for facilitating replacement of press rolls and fabrics
VALMET OY31 citations91
US4863656ASep 5, 1989
Microporous plate and method for manufacturing the same and suction drier apparatus
VALMET OY37 citations90
US4757782AJul 19, 1988
Apparatus for coating a web
VALMET OY55 citations90
US4757582AJul 19, 1988
Roll with heated mantle and method
VALMET OY30 citations90
US4653395AMar 31, 1987
Method and apparatus in the calendering of a web
VALMET OY43 citations90
US4625430ADec 2, 1986
Drying section and method in paper machine
VALMET OY56 citations90
US4614565ASep 30, 1986
Method for eddy current heating a roll in a paper machine
VALMET OY35 citations90
US4523978AJun 18, 1985
Forming shoe for a former in a paper machine
VALMET OY30 citations90
US4481723ANov 13, 1984
Paper machine multiple cylinder dryer
VALMET OY34 citations90
US4357758ANov 9, 1982
Method and apparatus for drying objects
VALMET OY35 citations90
US4062097ADec 13, 1977
Roll having magnetic deflection compensation
VALMET OY35 citations90
US3945296AMar 23, 1976
Gas piston in a firearm
VALMET OY35 citations90
US3938271AFeb 17, 1976
Ejection port closure for firearms
VALMET OY40 citations90
US4628618ADec 16, 1986
Apparatus in a drying section of a paper machine
VALMET OY36 citations89
US4566944AJan 28, 1986
Apparatus for cutting a lead-in strip from a paper web in a paper machine
VALMET OY36 citations89
US4548164AOct 22, 1985
Engine driven generator assembly
VALMET OY169 citations89
US4687548AAug 18, 1987
Method and apparatus for controlling distortion of fibre orientation in a paper web
VALMET OY26 citations88
US5009016AApr 23, 1991
Method for on-machine coating-drying of a paper web or the like
VALMET OY51 citations87
US4609435ASep 2, 1986
Process and equipment in the forming of paper web
VALMET OY32 citations87
Showing the top 50 of 342 patents by PatentIndex Score.