Inventor · disambiguated record
Keld Johansen
Also filed as: JOHANSEN KELD
19 granted patents·10 pending applications·73 citations·filing 1988–2019
92Inventor score
Top patents by PatentIndex Score
29 records- 0182US6576204B2Process for the production of aluminaHALDOR TOPSOE AS·Filed 2001·Granted Jun 10, 2003·17 cites·4 claims
- 0279US10577999B2System for the removal of particulate matter and noxious compounds from engine exhaust gasUMICORE AG & CO KG·Filed 2019·Granted Mar 3, 2020·1 cites·14 claims
- 0379US10570802B2System for the removal of particulate matter and noxious compounds from engine exhaust gasUMICORE AG & CO KG·Filed 2019·Granted Feb 25, 2020·1 cites·14 claims
- 0474US10443478B2System for the removal of particulate matter and noxious compounds from engine exhaust gasHALDOR TOPSOE AS·Filed 2016·Granted Oct 15, 2019·1 cites·21 claims
- 0572US9073047B2Method for the preparation of a catalysed particulate filter and catalysed particulate filterJOHANSEN KELD·Filed 2011·Granted Jul 7, 2015·4 cites·9 claims
- 0670US5217936ACatalyst for preparing aldehydeHALDOR TOPSOE AS·Filed 1992·Granted Jun 8, 1993·25 cites·9 claims
- 0769US10286360B2Method for cleaning process off- or engine exhaust gasHALDOR TOPSOE AS·Filed 2015·Granted May 14, 2019·1 cites·9 claims
- 0869US9346018B2Method for the preparation of a catalysed particulate filter and catalysed particulate filterJOHANSEN KELD·Filed 2011·Granted May 24, 2016·2 cites·9 claims
- 0966US8997465B2Method for purification of exhaust gas from a diesel engineGEKAS IOANNIS·Filed 2009·Granted Apr 7, 2015·5 cites·14 claims
- 1061US7569197B2Process for purification of sulphur-containing exhaust gasHALDOR TOPSOE AS·Filed 2007·Granted Aug 4, 2009·1 cites·12 claims
- 1155US2017211441A1Method and system for the removal of particulate matter and heavy metals from engine exhaust gasHALDOR TOPSOE AS·Filed 2014·Application pending·0 cites
- 1252US5118868ACatalyst for preparing aldehydeHALDOR TOPSOE AS·Filed 1990·Granted Jun 2, 1992·12 cites·8 claims
- 1351US6875723B2Process for the production of iron oxide containing catalystsHALDOR TOPSOE AS·Filed 2002·Granted Apr 5, 2005·1 cites·1 claims
- 1450US8127535B2Method and system for purification of exhaust gas from diesel enginesNORSK JESPER·Filed 2008·Granted Mar 6, 2012·1 cites·9 claims
- 1550US2015224477A1Method for the preparation of a catalysed particulate filter and catalysed particulate filterHALDOR TOPSOE AS·Filed 2015·Application pending·0 cites
- 1647US9562451B2Method and system for the removal of particulate matter soot, ash and heavy metals from engine exhaust gasHALDOR TOPSOE AS·Filed 2013·Granted Feb 7, 2017·0 cites·22 claims
- 1745US2005096216A1Process for the production of iron oxide containing catalystsFiled 2004·Application pending·0 cites
- 1844US2014140899A1Catalysed particulate filter and method for the preparation of a catalysed particulate filterGABRIELSSON PÄR L·Filed 2012·Application pending·0 cites
- 1943US10525503B2Method for the preparation of a catalysed monolithHALDOR TOPSOE AS·Filed 2017·Granted Jan 7, 2020·0 cites·13 claims
- 2043US2015020506A1Method and system for the removal of noxious compounds from engine exhaust gasHALDOR TOPSOE AS·Filed 2012·Application pending·0 cites
- 2143US2009260346A1Method for purification of an exhaust gas from a diesel engineGEKAS IOANNIS·Filed 2009·Application pending·0 cites
- 2242US2014134063A1Method for coating a catalysed particulate filter and a particulate filterGABRIELSSON PÄR L·Filed 2012·Application pending·0 cites
- 2342US2014170033A1Method for coating a catalysed particulate filter and a particulate filterGABRIELSSON PÄR L·Filed 2012·Application pending·0 cites
- 2441US2019001318A1Method for the preparation of a zone coated catalysed monolithHALDOR TOPSOE AS·Filed 2017·Application pending·0 cites
- 2540US9339844B2Method for the preparation of a catalysed particulate filter and catalysed particulate filterJOHANSEN KELD·Filed 2011·Granted May 17, 2016·0 cites·9 claims
- 2639US8603941B2Method and apparatus for the purification of exhaust gas from a compression ignition engineDAHL SOEREN·Filed 2007·Granted Dec 10, 2013·0 cites·3 claims
- 2739US2018193797A1Three way catalyst having an nh3-scr activity, an ammonia oxidation activity and an adsorption capacity for volatile vanadium and tungsten compoundsHALDOR TOPSOE AS·Filed 2016·Application pending·0 cites
- 2837US8431099B2Process and apparatus for purification of an exhaust gas from an internal combustion engineNORSK JESPER·Filed 2010·Granted Apr 30, 2013·0 cites·22 claims
- 2928US5010054AMethod for the preparation of superconducting productsHALDOR TOPSOE AS·Filed 1988·Granted Apr 23, 1991·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →