Inventor · disambiguated record
Steffen Hasenzahl
Also filed as: HASENZAHL STEFFEN
23 granted patents·25 pending applications·728 citations·filing 1997–2014
96Inventor score
Top patents by PatentIndex Score
48 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
- 0492US7815936B2Use of granular materials based on pyrogenically produced silicon dioxide in pharmaceutical compositionsEVONIK DEGUSSA GMBH·Filed 2002·Granted Oct 19, 2010·110 cites·8 claims
- 0592US7083769B2Silicon-titanium mixed oxide powder prepared by flame hydrolysis, which is surface-enriched with silicon dioxide, and the preparation and the use thereofDEGUSSA·Filed 2002·Granted Aug 1, 2006·53 cites·23 claims
- 0692US5919430APreparation of crystalline microporous and mesoporous metal silicates, products produced thereby and use thereofDEGUSSA·Filed 1997·Granted Jul 6, 1999·67 cites·20 claims
- 0791US6106803AGranulates which contain titanium silicalite-1DEGUSSA·Filed 1998·Granted Aug 22, 2000·97 cites·16 claims
- 0889US7470423B2Aqueous dispersion containing pyrogenically prepared metal oxide particles and dispersantsDEGUSSA·Filed 2003·Granted Dec 30, 2008·33 cites·24 claims
- 0989US7399487B2High-concentration aqueous dispersions comprising hydrophilic microfine metal oxide particles and dispersion auxiliariesGOLDSCHMIDT GMBH·Filed 2003·Granted Jul 15, 2008·36 cites·9 claims
- 1086US8728225B2Composition containing quaternary amino-functional organosilicon compounds and production and use thereofSTANDKE BURKHARD·Filed 2010·Granted May 20, 2014·6 cites·20 claims
- 1186US8012367B2Pulverulent materialsEVONIK DEGUSSA GMBH·Filed 2003·Granted Sep 6, 2011·31 cites·11 claims
- 1285US8979996B2Composition containing quaternary amino-functional organosilicon compunds and production and use thereofEVONIK DEGUSSA GMBH·Filed 2014·Granted Mar 17, 2015·4 cites·20 claims
- 1385US6773697B2Iron oxide and silicon dioxide-titanium dioxide mixed oxideDEGUSSA·Filed 2002·Granted Aug 10, 2004·39 cites·8 claims
- 1484US6566555B2Process for preparing oximesDEGUSSA·Filed 2001·Granted May 20, 2003·14 cites·23 claims
- 1579US6849570B2Process for the production of a titanium silicalite shaped bodyDEGUSSA·Filed 2001·Granted Feb 1, 2005·25 cites·15 claims
- 1676US6710193B2Process for preparing crystalline microporous and mesoporous metal silicates, products obtainable by said process and their useDEGUSSA·Filed 2001·Granted Mar 23, 2004·12 cites·7 claims
- 1760US6103924AProcess for the preparation of 2,3,5-trimethylhydroquinone diestersDEGUSSA·Filed 1999·Granted Aug 15, 2000·7 cites·21 claims
- 1860US6054112AProcess for the preparation of titanium containing molecular sievesDEGUSSA·Filed 1997·Granted Apr 25, 2000·25 cites·8 claims
- 1958US2008213325A1Powder mixture consisting of titanium dioxide, zinc oxide and zinc/titanium mixed oxideDEGUSSA·Filed 2008·Application pending·0 cites
- 2055US6534068B2Iron oxide and silicon dioxide-titanium dioxide mixed oxideDEGUSSA·Filed 2001·Granted Mar 18, 2003·2 cites·3 claims
- 2154US2005255134A1Brushable cosmetic preparation having a high water contentDEGUSSA·Filed 2004·Application pending·0 cites
- 2253US6323349B2Method of producing expoxides in the gaseous phaseDEGUSSA·Filed 2001·Granted Nov 27, 2001·1 cites·13 claims
- 2353US2005169861A1Aqueous dispersion containing pyrogenically produced metal oxide particles and phosphatesDEGUSSA·Filed 2003·Application pending·0 cites
- 2453US2008095724A1Pulverulent Cosmetic Formulation Having A High Water ContentDEGUSSA·Filed 2005·Application pending·0 cites
- 2550US6325946B1Process for treating waste waterDEGUSSA·Filed 2000·Granted Dec 4, 2001·2 cites·12 claims
- 2650US2009186053A1Surface-Modified Non-Metal/Metal Oxides Coated With Silicon DioxideDEGUSSA·Filed 2005·Application pending·0 cites
- 2750US2010209339A1Silicon-titanium mixed oxide powder, dispersion thereof and titanium-containing zeolite prepared therefromEVONIK DEGUSSA·Filed 2008·Application pending·0 cites
- 2849US2009047225A1Storage of pulverulent substances having a high water contentDEGUSSA·Filed 2005·Application pending·0 cites
- 2948US2007297998A1Surface-Modified Zinc-Titanium Mixed OxidesDEGUSSA·Filed 2005·Application pending·0 cites
- 3048US2009131694A1Silicon-titanium mixed oxide powder, dispersion thereof and titanium-containing zeolite prepared therefromEVONIK DEGUSSA GMBH·Filed 2007·Application pending·0 cites
- 3147US2006292192A1Pharmaceutical and cosmetic formulationsDEGUSSA·Filed 2003·Application pending·0 cites
- 3247US2005192190A1Shower oil gelsFiled 2005·Application pending·0 cites
- 3346US2006159637A1Surface-modified, structurally modified titanium dioxidesMEYER JURGEN·Filed 2005·Application pending·0 cites
- 3445US2006159636A1Structurally modified titanium dioxidesDEGUSSA·Filed 2005·Application pending·0 cites
- 3545US2009252815A1Pulverulent mixtures containing hydrogen peroxide and hydrophobized silicon dioxideEVONIK DEGUSSA GMBH·Filed 2009·Application pending·0 cites
- 3645US2005265934A1Powder mixture consisting of titanium dioxide, zinc oxide and zinc/titanium oxideDEGUSSA·Filed 2003·Application pending·0 cites
- 3744US2006159635A1Surface-modified pyrogenically prepared titanium dioxidesDEGUSSA·Filed 2005·Application pending·0 cites
- 3843US2006278847A1Use of pulverulent mixtures containing hydrogen peroxide and hydrophobed silicon dioxide for the controlled release of hydrogen peroxide or oxygenDEGUSSA·Filed 2005·Application pending·0 cites
- 3941US2002197311A1Pharmaceutical preprations containing pyrogenic silicon dioxideDEGUSSA·Filed 2002·Application pending·0 cites
- 4040US6896859B2Method for the production of a titanium-containing zeoliteDEGUSSA·Filed 2001·Granted May 24, 2005·0 cites·12 claims
- 4140US2007231280A1Ternary Metal Mixed Oxide PowderDEGUSSA·Filed 2005·Application pending·0 cites
- 4240US2003108580A1Use of granulates based on pyrogenically - produced silicon dioxide in cosmetic compositionsFiled 2002·Application pending·0 cites
- 4340US2006229210A1Carrier based on granules produced from pyrogenically prepared silicon dioxidesNEUGEBAUER PETER·Filed 2004·Application pending·0 cites
- 4439US2007055009A1Pulverulent mixture comprising hydrogen peroxide and hydrophobized silicon dioxideDEGUSSA·Filed 2004·Application pending·0 cites
- 4537US2003228271A1High-concentration aqueous dispersions comprising hydrophobic microfine metal oxide particles and dispersion auxiliariesGOLDSCHMIDT AG TH·Filed 2003·Application pending·0 cites
- 4636US2004063568A1Method for the production of form-selective catalysts and use thereofFiled 2001·Application pending·0 cites
- 4730US2001001656A1Crystalline microporous and mesoporous metal silicates and use thereofSTEFFEN HASENZAHL·Filed 1999·Application pending·0 cites
- 4828US8449812B2Process for the production of a titanium silicalite shaped articleHASENZAHL STEFFEN·Filed 2001·Granted May 28, 2013·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →