Inventor · disambiguated record
Fredrik Ohman
Also filed as: OEHMAN FREDRIK · OHMAN FREDRIK · ÖHMAN FREDRIK
10 granted patents·2 pending applications·46 citations·filing 2005–2019
86Inventor score
Top patents by PatentIndex Score
12 records- 0187US8486224B2Method for separating lignin from black liquorOEHMAN FREDRIK·Filed 2005·Granted Jul 16, 2013·15 cites·16 claims
- 0284US8172981B2Separating lignin from black liquor by precipitation, suspension and separationTOMANI PER·Filed 2008·Granted May 8, 2012·13 cites·19 claims
- 0378US9382389B2Method for separating lignin from black liquor, a lignin product, and use of a lignin product for the production of fuels or materialsOHMAN FREDRIK·Filed 2008·Granted Jul 5, 2016·5 cites·12 claims
- 0477US10836666B2Method for oxidation of a liquid phase in a hydrothermal carbonization processC GREEN TECH AB·Filed 2017·Granted Nov 17, 2020·2 cites·16 claims
- 0574US8815052B2Method for separating lignin from a lignin containing liquid/slurryÖHMAN FREDRIK·Filed 2005·Granted Aug 26, 2014·5 cites·19 claims
- 0669US9175438B2Method for lignin separation from black liquor involving multiple acidification stepsWIMBY MARTIN·Filed 2011·Granted Nov 3, 2015·3 cites·10 claims
- 0766US9777033B2Method for lignin separation from black liquorOHMAN FREDRIK·Filed 2012·Granted Oct 3, 2017·1 cites·5 claims
- 0861US10232876B2Method, system and computer program for controlling propulsion of a drilling rig as well as a drilling rigEPIROC ROCK DRILLS AB·Filed 2015·Granted Mar 19, 2019·2 cites·22 claims
- 0955US11724952B2Method and system for hydrothermal carbonization and wet oxidation of sludgeC GREEN TECH AB·Filed 2019·Granted Aug 15, 2023·0 cites·8 claims
- 1049US11999921B2Hydrothermal carbonization of sludge including recycling of a wet-oxidized fractionC GREEN AB·Filed 2018·Granted Jun 4, 2024·0 cites·13 claims
- 1145US2021078890A1Oxidation and Subsequent Hydrothermal Carbonization of SludgeC GREEN TECH AB·Filed 2018·Application pending·0 cites
- 1238US2018194657A1System and Method for Heat Treatment of SludgeC GREEN TECH AB·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →