Inventor · disambiguated record
Håkan Sjöström
Also filed as: SJOESTROEM HAAKAN · SJOESTROM HAKAN · SJÖSTRÖM Håkan
13 granted patents·2 pending applications·77 citations·filing 1990–2024
88Inventor score
Top patents by PatentIndex Score
15 records- 0184US7419112B2Refining surface and a blade segment for a refinerMETSO PAPER INC·Filed 2004·Granted Sep 2, 2008·23 cites·28 claims
- 0282US9133579B2Refiner and blade elementSJÖSTRÖM Håkan·Filed 2012·Granted Sep 15, 2015·6 cites·15 claims
- 0379US11142869B2Blade segment for refinerVALMET TECHNOLOGIES INC·Filed 2018·Granted Oct 12, 2021·2 cites·28 claims
- 0473US6221212B1Cardboard having great reigiditySTORA KOPPARBERGS BERGSLAGS AB·Filed 1999·Granted Apr 24, 2001·35 cites·20 claims
- 0572US7934672B2Refiner blade and segment, as well as a method of forming them and a method of modifying blade groovesMETSO PAPER INC·Filed 2006·Granted May 3, 2011·3 cites·30 claims
- 0666US10464068B2Blade element for refinerVALMET TECHNOLOGIES OY·Filed 2015·Granted Nov 5, 2019·1 cites·20 claims
- 0765US9222220B2Refiner and blade elementSJÖSTRÖM Håkan·Filed 2012·Granted Dec 29, 2015·1 cites·18 claims
- 0864US2025171959A1Conical Refining FillingVALMET TECHNOLOGIES INC·Filed 2024·Application pending·0 cites
- 0961US9222219B2Blade elementVUORIO PETTERI·Filed 2013·Granted Dec 29, 2015·1 cites·20 claims
- 1057US2025043510A1Refining Segment for RefinerVALMET TECHNOLOGIES OY·Filed 2022·Application pending·0 cites
- 1155US12410558B2Blade segment for refinerVALMET TECHNOLOGIES OY·Filed 2021·Granted Sep 9, 2025·0 cites·14 claims
- 1251US11898310B2Device for mechanically processing lignocellulose-containing fibrous materialVALMET TECHNOLOGIES OY·Filed 2020·Granted Feb 13, 2024·0 cites·20 claims
- 1344US9765479B2Blade segment of disc refinerSJÖSTRÖM Håkan·Filed 2015·Granted Sep 19, 2017·0 cites·14 claims
- 1436US5208286ACross-linkable ethylene-vinyl alcohol-acrylate polymer and method of producing the sameNESTE OY·Filed 1990·Granted May 4, 1993·5 cites·6 claims
- 1534US11732587B2Blade elementVALMET TECHNOLOGIES OY·Filed 2022·Granted Aug 22, 2023·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →