Assignee
VALMET OY
SE·342 granted patents·46 pending applications·4,952 citations·filing 1973–2024
Top patents by PatentIndex Score
388 records- 0197US9410287B2Paper making machine, an extended nip roll and a method of producing tissue paperVALMET OY·Filed 2015·Granted Aug 9, 2016·32 cites·23 claims
- 0297US4202113APaper machine drying section and method for operating sameVALMET OY·Filed 1978·Granted May 13, 1980·79 cites·16 claims
- 0395US4976821APress section with separate press zones in a paper machineVALMET OY·Filed 1989·Granted Dec 11, 1990·78 cites·19 claims
- 0494US4229250AMethod of improving properties of mechanical paper pulp without chemical reaction therewithVALMET OY·Filed 1979·Granted Oct 21, 1980·52 cites·10 claims
- 0593US4576682ALong-nip press for a paper making machineVALMET OY·Filed 1984·Granted Mar 18, 1986·71 cites·8 claims
- 0692US10767309B2Refiner segment in a fiber refinerVALMET OY·Filed 2018·Granted Sep 8, 2020·5 cites·7 claims
- 0792US4441263ADevice in the drying section of a paper machineVALMET OY·Filed 1980·Granted Apr 10, 1984·88 cites·6 claims
- 0892US3968727AFirearm with gas-operable structure and relief valveVALMET OY·Filed 1974·Granted Jul 13, 1976·65 cites·9 claims
- 0991US4781793AMethod for improving paper properties in multiply paper using long and short fiber layersVALMET OY·Filed 1987·Granted Nov 1, 1988·55 cites·22 claims
- 1091US4568423AApparatus with a long press zone in the press treatment of a webVALMET OY·Filed 1983·Granted Feb 4, 1986·59 cites·10 claims
- 1191US4332191ACalenderVALMET OY·Filed 1980·Granted Jun 1, 1982·39 cites·14 claims
- 1291US4144124AMachine for manufacturing paper such as tissue paperVALMET OY·Filed 1977·Granted Mar 13, 1979·69 cites·10 claims
- 1390US4675487AApparatus and method for electromagnetic heating of a rollVALMET OY·Filed 1984·Granted Jun 23, 1987·58 cites·24 claims
- 1489US10378149B2Refiner plate segment with pre-damVALMET OY·Filed 2017·Granted Aug 13, 2019·5 cites·8 claims
- 1589US8911594B2Paper making machine, an extended nip roll and a method of producing tissue paperVALMET OY·Filed 2012·Granted Dec 16, 2014·9 cites·12 claims
- 1689US4548164AEngine driven generator assemblyVALMET OY·Filed 1985·Granted Oct 22, 1985·169 cites·14 claims
- 1789US4452647AHard-surfaced cast iron articles and method and apparatus for manufacturing the sameVALMET OY·Filed 1981·Granted Jun 5, 1984·24 cites·3 claims
- 1889US4154645AMethod and machine for manufacturing multilayer paper boardVALMET OY·Filed 1978·Granted May 15, 1979·42 cites·21 claims
- 1988US4692215AApparatus for conveying a web lead-in strip in a paper machineVALMET OY·Filed 1985·Granted Sep 8, 1987·38 cites·10 claims
- 2088US4614565AMethod for eddy current heating a roll in a paper machineVALMET OY·Filed 1983·Granted Sep 30, 1986·35 cites·7 claims
- 2188US4163688AApparatus for dewatering in a paper machineVALMET OY·Filed 1977·Granted Aug 7, 1979·39 cites·3 claims
- 2288US4062097ARoll having magnetic deflection compensationVALMET OY·Filed 1976·Granted Dec 13, 1977·35 cites·14 claims
- 2387US10927499B2Refiner segment in a fiber refinerVALMET OY·Filed 2018·Granted Feb 23, 2021·4 cites·12 claims
- 2487US9511968B2Reel-up and a method for winding into a roll a paper web and for starting a new rollVALMET OY·Filed 2014·Granted Dec 6, 2016·8 cites·7 claims
- 2587US4543160AMethod and device for guiding the leader of the web in the drying section of a paper machineVALMET OY·Filed 1984·Granted Sep 24, 1985·30 cites·17 claims
- 2687US4526655APress section with separate press nips in a paper machineVALMET OY·Filed 1983·Granted Jul 2, 1985·48 cites·14 claims
- 2787US4391672AMethod used in paper making for treatment of a weaveVALMET OY·Filed 1981·Granted Jul 5, 1983·49 cites·15 claims
- 2887US4128053ASupercalendersVALMET OY·Filed 1977·Granted Dec 5, 1978·26 cites·23 claims
- 2987US4124942AMethod and apparatus for controlling the moisture content of a web of sheet materialVALMET OY·Filed 1976·Granted Nov 14, 1978·46 cites·11 claims
- 3086US4854052AFloater radiation dryerVALMET OY·Filed 1987·Granted Aug 8, 1989·38 cites·22 claims
- 3186US4653395AMethod and apparatus in the calendering of a webVALMET OY·Filed 1985·Granted Mar 31, 1987·43 cites·22 claims
- 3286US4625430ADrying section and method in paper machineVALMET OY·Filed 1985·Granted Dec 2, 1986·56 cites·44 claims
- 3386US4113557APaper manufacturing structure particularly for detaching a web from a wireVALMET OY·Filed 1977·Granted Sep 12, 1978·34 cites·10 claims
- 3486US3997390ATwin-wire paper machine and method for operating the sameVALMET OY·Filed 1974·Granted Dec 14, 1976·27 cites·20 claims
- 3586US3994774ATwin-wire paper machine adjustable to single-wire machineVALMET OY·Filed 1975·Granted Nov 30, 1976·49 cites·15 claims
- 3685US11660661B2Method for producing a refiner disc segmentVALMET OY·Filed 2022·Granted May 30, 2023·1 cites·10 claims
- 3785US4247990AMethod for controlling the moisture content of a web of sheet materialVALMET OY·Filed 1978·Granted Feb 3, 1981·39 cites·10 claims
- 3884US4551203AMethod and arrangement for guiding a paper web from the press section to the drying sectionVALMET OY·Filed 1984·Granted Nov 5, 1985·41 cites·18 claims
- 3984US4183148APaper machine drying section and method of operating the sameVALMET OY·Filed 1977·Granted Jan 15, 1980·34 cites·15 claims
- 4084US3938271AEjection port closure for firearmsVALMET OY·Filed 1974·Granted Feb 17, 1976·40 cites·5 claims
- 4183US11566374B2Refining plate provided with refining bars having edge creating bar cavitiesVALMET OY·Filed 2018·Granted Jan 31, 2023·2 cites·10 claims
- 4283US11485988B2Method for cooling and detoxifying biomassVALMET OY·Filed 2020·Granted Nov 1, 2022·2 cites·20 claims
- 4383US10047408B2Arrangement and system for a treatment processVALMET OY·Filed 2015·Granted Aug 14, 2018·4 cites·27 claims
- 4483US4757782AApparatus for coating a webVALMET OY·Filed 1986·Granted Jul 19, 1988·55 cites·8 claims
- 4583US4757582ARoll with heated mantle and methodVALMET OY·Filed 1987·Granted Jul 19, 1988·30 cites·37 claims
- 4683US4559106APress roll and press in a paper making machineVALMET OY·Filed 1984·Granted Dec 17, 1985·45 cites·10 claims
- 4783US4464226APaper machine press with a wide pressing zoneVALMET OY·Filed 1982·Granted Aug 7, 1984·40 cites·9 claims
- 4883US3990348AFirearm having a relief valveVALMET OY·Filed 1974·Granted Nov 9, 1976·64 cites·4 claims
- 4982US10385506B2Arrangement and system for feeding biomass material to a treatment processVALMET OY·Filed 2015·Granted Aug 20, 2019·2 cites·5 claims
- 5082US4634068AMethod for controlling paper web reel-upVALMET OY·Filed 1985·Granted Jan 6, 1987·36 cites·9 claims
Showing the top 50 of 388 patent records by PatentIndex Score.
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →