Inventor · disambiguated record
Stephan Siemund
Also filed as: SIEMUND STEPHAN
14 granted patents·5 pending applications·313 citations·filing 2007–2023
93Inventor score
Top patents by PatentIndex Score
19 records- 0196US7754171B2Multilayered catalyst compositionsBASF CORP·Filed 2008·Granted Jul 13, 2010·53 cites·25 claims
- 0295US9266092B2Automotive catalyst composites having a two-metal layerBASF CORP·Filed 2014·Granted Feb 23, 2016·40 cites·30 claims
- 0395US8617496B2Three way conversion catalyst with alumina-free rhodium layerWEI JUNMEI·Filed 2012·Granted Dec 31, 2013·48 cites·23 claims
- 0494US8815189B2Gasoline engine emissions treatment systems having particulate filtersARNOLD MIRKO·Filed 2011·Granted Aug 26, 2014·44 cites·26 claims
- 0594US7879755B2Catalyst compositionsBASF CORP·Filed 2007·Granted Feb 1, 2011·33 cites·11 claims
- 0693US8758695B2Treatment system for gasoline engine exhaust gasNEUBAUER TORSTEN·Filed 2010·Granted Jun 24, 2014·24 cites·22 claims
- 0793US7922988B2Multilayered catalyst compositionsDEEBA MICHEL·Filed 2009·Granted Apr 12, 2011·43 cites·15 claims
- 0892US8835346B2Catalyst materialsGRAMICCIONI GARY A·Filed 2012·Granted Sep 16, 2014·19 cites·15 claims
- 0987US11376569B2Four-way conversion catalyst having improved filter propertiesBASF CORP·Filed 2019·Granted Jul 5, 2022·3 cites·18 claims
- 1085US11185819B2Monometallic rhodium-containing four-way conversion catalysts for gasoline engine emissions treatment systemsBASF CORP·Filed 2017·Granted Nov 30, 2021·4 cites·22 claims
- 1175US11181023B2Four way conversion catalysts for gasoline engine emissions treatment systemsBASF CORP·Filed 2017·Granted Nov 23, 2021·2 cites·20 claims
- 1274US11865497B2Monometallic rhodium-containing four-way conversion catalysts for gasoline engine emissions treatment systemsBASF CORP·Filed 2021·Granted Jan 9, 2024·0 cites·19 claims
- 1356US2025312740A1Gasoline particulate filterBASF CORP·Filed 2023·Application pending·0 cites
- 1454US2024344473A1Particulate filter having partially coated catalytic layerBASF CORP·Filed 2022·Application pending·0 cites
- 1552US2023191372A1Catalyst for particulate combustion in gasoline emission treatment systemsBASF CORP·Filed 2021·Application pending·0 cites
- 1651US12005426B2Three-way conversion catalyst in gasoline-natural gas applicationsBASF CORP·Filed 2019·Granted Jun 11, 2024·0 cites·15 claims
- 1744US11992806B2Four-way conversion catalyst having improved filter propertiesBASF CORP·Filed 2019·Granted May 28, 2024·0 cites·18 claims
- 1842US2024189771A1Platinum-containing three-way catalyst for close-coupled engine applicationBASF CORP·Filed 2022·Application pending·0 cites
- 1939US2024001271A1Particulate Filter Having A Centralized-Distributed Functional Material Layer And Process For Preparing The SameBASF CORP·Filed 2021·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →