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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →