Steffen Hasenzahl
23Patents
12h-index
50Co-inventors
80Inventor score
Filing activity: Jun 19, 1997 → Apr 1, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7815936B2 | Use of granular materials based on pyrogenically produced silicon dioxide in pharmaceutical compositions | Performing Operations; Transporting | 96 | Expired |
| US6106803A | Granulates which contain titanium silicalite-1 | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5919430A | Preparation of crystalline microporous and mesoporous metal silicates, products produced thereby and use thereof | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6773814B2 | Metal oxide particles coated with silicon dioxide | Emerging Cross-Sectional Technologies | 26 | Expired |
| US7255735B2 | Surface-modified silicon dioxide-titanium dioxide mixed oxides | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7083769B2 | Silicon-titanium mixed oxide powder prepared by flame hydrolysis, which is surface-enriched with silicon dioxide, and the preparation and the use thereof | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7244302B2 | Titanium dioxide coated with silicon dioxide | Emerging Cross-Sectional Technologies | 21 | Expired |
| US7470423B2 | Aqueous dispersion containing pyrogenically prepared metal oxide particles and dispersants | Chemistry; Metallurgy | 20 | Expired |
| US7399487B2 | High-concentration aqueous dispersions comprising hydrophilic microfine metal oxide particles and dispersion auxiliaries | Chemistry; Metallurgy | 19 | Expired |
| US6773697B2 | Iron oxide and silicon dioxide-titanium dioxide mixed oxide | Chemistry; Metallurgy | 19 | Expired |
| US8012367B2 | Pulverulent materials | Human Necessities | 16 | Expired |
| US6054112A | Process for the preparation of titanium containing molecular sieves | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6849570B2 | Process for the production of a titanium silicalite shaped body | Performing Operations; Transporting | 11 | Expired |
| US8728225B2 | Composition containing quaternary amino-functional organosilicon compounds and production and use thereof | Chemistry; Metallurgy | 5 | Active |
| US6566555B2 | Process for preparing oximes | Chemistry; Metallurgy | 5 | Expired |
| US8979996B2 | Composition containing quaternary amino-functional organosilicon compunds and production and use thereof | Chemistry; Metallurgy | 4 | Active |
| US6710193B2 | Process for preparing crystalline microporous and mesoporous metal silicates, products obtainable by said process and their use | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6103924A | Process for the preparation of 2,3,5-trimethylhydroquinone diesters | Chemistry; Metallurgy | 2 | Expired |
| US6534068B2 | Iron oxide and silicon dioxide-titanium dioxide mixed oxide | Chemistry; Metallurgy | 1 | Expired |
| US6325946A | Process for treating waste water | Chemistry; Metallurgy | 1 | Expired |
| US6323349A | Method of producing expoxides in the gaseous phase | Chemistry; Metallurgy | 0 | Expired |
| US8449812B2 | Process for the production of a titanium silicalite shaped article | Performing Operations; Transporting | 0 | Expired |
| US6896859B2 | Method for the production of a titanium-containing zeolite | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.