Inventor · disambiguated record
Kai Schumacher
Also filed as: SCHUMACHER KAI
35 granted patents·28 pending applications·390 citations·filing 2002–2019
97Inventor score
Top patents by PatentIndex Score
63 records- 0197US7255735B2Surface-modified silicon dioxide-titanium dioxide mixed oxidesDEGUSSA·Filed 2005·Granted Aug 14, 2007·44 cites·17 claims
- 0295US6773814B2Metal oxide particles coated with silicon dioxideDEGUSSA·Filed 2002·Granted Aug 10, 2004·71 cites·20 claims
- 0393US7244302B2Titanium dioxide coated with silicon dioxideDEGUSSA·Filed 2003·Granted Jul 17, 2007·49 cites·15 claims
- 0493US6767377B2Aqueous dispersion containing cerium oxide-coated silicon powder, process for the production thereof and use thereofDEGUSSA·Filed 2003·Granted Jul 27, 2004·63 cites·18 claims
- 0589US7749322B2Aluminium oxide powder produced by flame hydrolysis and having a large surface areaEVONIK DEGUSSA GMBH·Filed 2004·Granted Jul 6, 2010·37 cites·17 claims
- 0686US7972431B2Surface-modified silicasEVONIK DEGUSSA GMBH·Filed 2007·Granted Jul 5, 2011·7 cites·6 claims
- 0785US10280088B2Method for producing silicic acid with variable thickeningEVONIK DEGUSSA GMBH·Filed 2014·Granted May 7, 2019·4 cites·9 claims
- 0884US7416600B2Silicon-titanium mixed oxide powder produced by flame hydrolysisDEGUSSA·Filed 2005·Granted Aug 26, 2008·6 cites·13 claims
- 0983US8512595B2Surface-modified, pyrogenically prepared silicasMEYER JUERGEN·Filed 2008·Granted Aug 20, 2013·5 cites·6 claims
- 1081US11242259B2Method for producing silicic acid with variable thickeningEVONIK OPERATIONS GMBH·Filed 2019·Granted Feb 8, 2022·1 cites·11 claims
- 1180US7491375B2Pyrogenically produced silicon dioxide powderDEGUSSA·Filed 2005·Granted Feb 17, 2009·6 cites·3 claims
- 1280US7306667B2Silicon-titanium mixed oxide powderDEGUSSA·Filed 2005·Granted Dec 11, 2007·5 cites·23 claims
- 1380US6855635B2Coated doped oxidesDEGUSSA·Filed 2002·Granted Feb 15, 2005·19 cites·21 claims
- 1478US8209999B2Method of making silica-glass granule from pyrogenic silica powderSCHUMACHER KAI·Filed 2008·Granted Jul 3, 2012·9 cites·20 claims
- 1577US8535633B2Process for the production of doped metal oxide particlesSCHUMACHER KAI·Filed 2006·Granted Sep 17, 2013·4 cites·18 claims
- 1676US8507033B2Surface-modified, pyrogenically prepared silicasMEYER JUERGEN·Filed 2008·Granted Aug 13, 2013·2 cites·9 claims
- 1776US8197791B2Aluminium oxide powder, dispersion and coating compositionSCHUMACHER KAI·Filed 2005·Granted Jun 12, 2012·4 cites·15 claims
- 1876US7351388B2Pyrogenically produced silicon dioxide powderDEGUSSA·Filed 2005·Granted Apr 1, 2008·5 cites·3 claims
- 1975US7722849B2Pyrogenic silicon dioxide and a dispersion thereofEVONIK DEGUSSA GMBH·Filed 2003·Granted May 25, 2010·13 cites·41 claims
- 2073US7862797B2Mixed oxide powder comprising alkali metal oxide, and silicone rubber comprising this powderEVONIK DEGUSSA GMBH·Filed 2006·Granted Jan 4, 2011·2 cites·11 claims
- 2172US7785560B2Purification of finely divided, pyrogenically prepared metal oxide particlesEVONIK DEGUSSA GMBH·Filed 2004·Granted Aug 31, 2010·12 cites·11 claims
- 2271US7439298B2Pyrogenically produced silicon dioxide powder and silicone sealing compound containing this powderDEGUSSA·Filed 2005·Granted Oct 21, 2008·4 cites·8 claims
- 2369US7918933B2Dispersion of high surface area silicaEVONIK DEGUSSA GMBH·Filed 2007·Granted Apr 5, 2011·1 cites·11 claims
- 2468US7534409B2Pyrogenic silicon dioxide powder and dispersion thereofDEGUSSA·Filed 2004·Granted May 19, 2009·7 cites·17 claims
- 2567US8580170B2Process for producing a substantially shell-shaped componentLAW BARNABY·Filed 2006·Granted Nov 12, 2013·3 cites·7 claims
- 2667US7658907B2Titanium-aluminium mixed oxide powderDEGUSSA·Filed 2005·Granted Feb 9, 2010·1 cites·17 claims
- 2766US7888396B2Silicon dioxide dispersionEVONIK DEGUSSA GMBH·Filed 2009·Granted Feb 15, 2011·0 cites·20 claims
- 2865US7892510B2Silicon dioxide dispersionEVONIK DEGUSSA GMBH·Filed 2009·Granted Feb 22, 2011·0 cites·20 claims
- 2959US2008145659A1Pyrogenically produced silicon dioxide powderDAGUSSA AG·Filed 2008·Application pending·0 cites
- 3058US7824643B2Silicon dioxide dispersionEVONIK DEGUSSA GMBH·Filed 2003·Granted Nov 2, 2010·2 cites·27 claims
- 3158US2008213325A1Powder mixture consisting of titanium dioxide, zinc oxide and zinc/titanium mixed oxideDEGUSSA·Filed 2008·Application pending·0 cites
- 3257US7910515B2PhotocatalystEVONIK DEGUSSA GMBH·Filed 2006·Granted Mar 22, 2011·1 cites·20 claims
- 3356US8062622B2Titanium dioxide having increased sintering activitySCHULZE-ISFORT CHRISTIAN·Filed 2009·Granted Nov 22, 2011·0 cites·17 claims
- 3456US7541014B2Pyrogenically produced silicaDEGUSSA·Filed 2003·Granted Jun 2, 2009·3 cites·13 claims
- 3556US2009137827A1Silicon-titanium mixed oxide-containing dispersion for the production of titanium-containing zeolitesEVONIK DEGUSSA GMBH·Filed 2007·Application pending·0 cites
- 3655US2009035210A1Carbon blackKRAUSS KAI·Filed 2008·Application pending·0 cites
- 3755US2010016490A1PolymersEVONIK DEGUSSA GMBH·Filed 2008·Application pending·0 cites
- 3855US2010196243A1Surface-modified, pyrogenically prepared silicasEVONIK DEGUSSA GMBH·Filed 2008·Application pending·0 cites
- 3955US2012116102A1Silicon-titanium mixed oxide-containing dispersion for the production of titanium-containing zeolitesLORTZ WOLFGANG·Filed 2011·Application pending·0 cites
- 4052US2008292539A1Titanium dioxide having increased sintering activityEVONIK DEGUSSA GMBH·Filed 2008·Application pending·0 cites
- 4150US2009186053A1Surface-Modified Non-Metal/Metal Oxides Coated With Silicon DioxideDEGUSSA·Filed 2005·Application pending·0 cites
- 4250US2008269054A1Preparation Containing Uv Radiation Absorbing Metal Oxide Powder and a Superspreading AgentEVONIK DEGUSSA GMBH·Filed 2006·Application pending·0 cites
- 4350US2010209339A1Silicon-titanium mixed oxide powder, dispersion thereof and titanium-containing zeolite prepared therefromEVONIK DEGUSSA·Filed 2008·Application pending·0 cites
- 4450US2008318046A1Titanium dioxide having a variable sintering stabilityEVONIK DEGUSSA GMBH·Filed 2008·Application pending·0 cites
- 4548US2007297998A1Surface-Modified Zinc-Titanium Mixed OxidesDEGUSSA·Filed 2005·Application pending·0 cites
- 4648US2010183495A1Process for preparing high-purity silicon dioxide granuleEVONIK DEGUSSA GMBH·Filed 2008·Application pending·0 cites
- 4748US2009131694A1Silicon-titanium mixed oxide powder, dispersion thereof and titanium-containing zeolite prepared therefromEVONIK DEGUSSA GMBH·Filed 2007·Application pending·0 cites
- 4847US2008267852A1Process for Preparing Pulverulent SolidsEVONIK DEGUSSA GMBH·Filed 2006·Application pending·0 cites
- 4946US2011171120A1Process for preparing a dispersion comprising titanium-silicon mixed oxideEVONIK DEGUSSA GMBH·Filed 2008·Application pending·0 cites
- 5045US2005265934A1Powder mixture consisting of titanium dioxide, zinc oxide and zinc/titanium oxideDEGUSSA·Filed 2003·Application pending·0 cites
Showing the top 50 of 63 patent records by PatentIndex Score.
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