Inventor · disambiguated record
Ralf Karch
Also filed as: KARCH RALF · KARCH RALF WILHELM
51 granted patents·11 pending applications·255 citations·filing 1998–2025
97Inventor score
Top patents by PatentIndex Score
62 records- 0194US7671224B2Use of a phosphorus containing ligand and a cyclic organic ligand in a transition metal compoundUMICORE AG & CO KG·Filed 2006·Granted Mar 2, 2010·57 cites·35 claims
- 0293US9353139B2Metal complexes with N-Aminoamidinate ligandsSUNDERMEYER JOERG·Filed 2012·Granted May 31, 2016·34 cites·19 claims
- 0389US9617284B2Method for producing alkyl-indium compounds and the use thereofUMICORE AG & CO KG·Filed 2014·Granted Apr 11, 2017·5 cites·68 claims
- 0488US10954261B2Method for producing aqueous preparations of complexes of platinum group metalsUMICORE AG & CO KG·Filed 2017·Granted Mar 23, 2021·2 cites·6 claims
- 0588US2025361255A1Trimethylplatinum(iv) iodideUMICORE AG & CO KG·Filed 2025·Application pending·0 cites
- 0686US8288558B2Metathesis catalystsARLT DIETER·Filed 2007·Granted Oct 16, 2012·9 cites·8 claims
- 0783US9856280B2Method for producing aqueous preparations of complexes of platinum group metalsUMICORE AG & CO KG·Filed 2013·Granted Jan 2, 2018·2 cites·24 claims
- 0883US6156449ACatalyst layer for polymer electrolyte fuel cellsDEGUSSA·Filed 1999·Granted Dec 5, 2000·74 cites·26 claims
- 0982US9108985B2Process for preparing trialkylgallium compoundsUMICORE AG & CO KG·Filed 2012·Granted Aug 18, 2015·3 cites·34 claims
- 1081US8536344B2Metathesis catalystsARLT DIETER·Filed 2012·Granted Sep 17, 2013·3 cites·7 claims
- 1180US11702437B2Method for producing aqueous preparations of complexes of platinum group metalsUMICORE AG & CO KG·Filed 2022·Granted Jul 18, 2023·0 cites·16 claims
- 1279US9540401B2Method for producing alkyl-indium compounds and the use thereofUMICORE AG & CO KG·Filed 2014·Granted Jan 10, 2017·2 cites·20 claims
- 1378US8716509B2Process for preparing ruthenium(0)-olefin complexesDOPPIU ANGELINO·Filed 2010·Granted May 6, 2014·2 cites·24 claims
- 1477US12358937B2Precious metal compoundsUMICORE AG & CO KG·Filed 2022·Granted Jul 15, 2025·0 cites·11 claims
- 1576US11407776B2Method for producing aqueous preparations of complexes of platinum group metalsUMICORE AG & CO KG·Filed 2021·Granted Aug 9, 2022·0 cites·10 claims
- 1675US9604205B2Method for preparation of a ruthenium indenylidene complexUMICORE AG & CO KG·Filed 2016·Granted Mar 28, 2017·1 cites·4 claims
- 1773US6191297B1Process for the preparation of organosilanes functionalized in the 3-positionDEGUSSA·Filed 1999·Granted Feb 20, 2001·18 cites·9 claims
- 1871US8703985B2Method for preparation of ruthenium-indenylidene carbene catalystsWINDE ROLAND·Filed 2009·Granted Apr 22, 2014·2 cites·25 claims
- 1970US12410205B2Trimethylplatinum(IV) iodideUMICORE AG & CO KG·Filed 2021·Granted Sep 9, 2025·0 cites·18 claims
- 2070US10745421B2Method for producing alkyl-indium compounds and the use thereofUMICORE AG & CO KG·Filed 2019·Granted Aug 18, 2020·0 cites·5 claims
- 2170US8846938B2Method for preparation of ruthenium-based metathesis catalysts with chelating alkylidene ligandsWINDE ROLAND·Filed 2010·Granted Sep 30, 2014·2 cites·16 claims
- 2269US6346562B1Cross-linkable mixtures and a method for the production and utilization thereofGEN ELECTRIC·Filed 1998·Granted Feb 12, 2002·24 cites·9 claims
- 2368US11225498B2Preparation of rhodium(III)-2-ethylhexanoateUMICORE AG & CO KG·Filed 2019·Granted Jan 18, 2022·0 cites·7 claims
- 2467US7951969B2Process for the preparation of iridium acetateUMICORE AG & CO KG·Filed 2006·Granted May 31, 2011·1 cites·30 claims
- 2566US8288534B2Process for the preparation a ruthenium complexDOPPIU ANGELINO·Filed 2010·Granted Oct 16, 2012·1 cites·9 claims
- 2664US10239892B2Method for producing alkyl-indium compounds and the use thereofUMICORE AG & CO KG·Filed 2017·Granted Mar 26, 2019·0 cites·16 claims
- 2763US9695201B2Process for preparing trialkyl compounds of metals of group IIIAUMICORE AG & CO KG·Filed 2012·Granted Jul 4, 2017·0 cites·45 claims
- 2862US6153782AMethod of producing propylsilanesDEGUSSA·Filed 1999·Granted Nov 28, 2000·10 cites·5 claims
- 2961US12466742B2Production of MoO2Cl2SK SPECIALTY CO LTD·Filed 2021·Granted Nov 11, 2025·0 cites·11 claims
- 3061US11352385B2Precious metal compoundsUMICORE AG & CO KG·Filed 2017·Granted Jun 7, 2022·0 cites·4 claims
- 3160US6686495B2Process for the preparation of mono-, bi- or poly-functional biarylsOMG AG & CO KG·Filed 2001·Granted Feb 3, 2004·2 cites·35 claims
- 3259US9562116B2Method for preparation of ruthenium-based metathesis catalysts with chelating alkylidene ligandsUMICORE AG & CO KG·Filed 2014·Granted Feb 7, 2017·0 cites·16 claims
- 3359US9339804B2Method for preparation of a ruthenium indenylidene complexUMICORE AG & CO KG·Filed 2013·Granted May 17, 2016·0 cites·10 claims
- 3459US2024116965A1Organometallic compoundsUMICORE AG & CO KG·Filed 2021·Application pending·0 cites
- 3559US2017043332A1Method for Preparation of a Ruthenium Indenylidene ComplexUMICORE AG & CO KG·Filed 2016·Application pending·0 cites
- 3658US11584764B2Production of trialkylindium compounds in the presence of carboxylatesUMICORE AG & CO KG·Filed 2018·Granted Feb 21, 2023·0 cites·19 claims
- 3758US8884044B2Ruthenium complexes having (P—P)—coordinated diphosphorus donor ligands and processes for preparing themRIVAS-NASS ANDREAS·Filed 2009·Granted Nov 11, 2014·1 cites·20 claims
- 3857US12091427B2Metal complexes for gas-phase thin-film depositionUMICORE AG & CO KG·Filed 2020·Granted Sep 17, 2024·0 cites·13 claims
- 3957US10584142B2Preparation of Rhodium(III)-2-ethylhexanoateUMICORE AG & CO KG·Filed 2016·Granted Mar 10, 2020·0 cites·5 claims
- 4057US2024352054A1Method for making metal trimethylenemethane-carbonyl complexesUMICORE AG & CO KG·Filed 2022·Application pending·0 cites
- 4156US12180234B2Metal organic compoundsUMICORE AG & CO KG·Filed 2019·Granted Dec 31, 2024·0 cites·14 claims
- 4255US10632097B2Organometallic compoundUMICORE AG & CO KG·Filed 2016·Granted Apr 28, 2020·0 cites·16 claims
- 4355US8829220B2Process for preparing dienyl-ruthenium complexesDOPPIU ANGELINO·Filed 2009·Granted Sep 9, 2014·0 cites·20 claims
- 4453US11643425B2Organometallic compounds for the manufacture of a semiconductor element or electronic memoryUMICORE AG & CO KG·Filed 2019·Granted May 9, 2023·0 cites·15 claims
- 4551US2023192736A1Organometallic compoundsUMICORE AG & CO KG·Filed 2020·Application pending·0 cites
- 4651US2023295203A1Metal organic compoundsUMICORE AG & CO KG·Filed 2020·Application pending·0 cites
- 4750US11623874B2Process for the production of metal carbonylsUMICORE AG & CO KG·Filed 2017·Granted Apr 11, 2023·0 cites·13 claims
- 4850US10385073B2Process for preparing alkyl-indium compounds and the use thereofUMICORE AG & CO KG·Filed 2016·Granted Aug 20, 2019·0 cites·29 claims
- 4949US11407650B2Method for the reduction of metal halidesUMICORE AG & CO KG·Filed 2018·Granted Aug 9, 2022·0 cites·10 claims
- 5049US11066434B2Metal complexes comprising aniline type ligandsUMICORE AG & CO KG·Filed 2020·Granted Jul 20, 2021·0 cites·8 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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