Ekkehard Schwab
100Patents
11h-index
234Co-inventors
83Inventor score
Filing activity: Apr 29, 1986 → Dec 20, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5866734A | Hydrogenation process | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6350717B1 | Catalyst and process for the selective hydrogenation of unsaturated compounds in hydrocarbon streams | Emerging Cross-Sectional Technologies | 38 | Expired |
| US6437206B1 | Catalyst and processes for the selective hydrogenation of unsaturated compounds in hydrocarbon streams | Chemistry; Metallurgy | 34 | Expired |
| US5935896A | Catalyst supports and catalysts for dehydrocyanation reactions and processes for producing them | Performing Operations; Transporting | 23 | Expired |
| US5505880A | Magnetorheological Fluid | Electricity | 23 | Expired |
| US7754922B2 | Process for preparing amines and zirconium dioxide- and nickel-containing catalysts for use therein | Performing Operations; Transporting | 18 | Active |
| US8349037B2 | Adsorber material and process for desulfurizing hydrocarbonaceous gases | Emerging Cross-Sectional Technologies | 17 | Active |
| US6197720A | Palladium clusters and their use as catalysts | Chemistry; Metallurgy | 14 | Expired |
| US6074472A | Hydrolytic preparation of titanium dioxide pigments | Chemistry; Metallurgy | 14 | Expired |
| US6350911B1 | Method for producing amines | Performing Operations; Transporting | 14 | Expired |
| US7750189B2 | Method for producing an amine | Performing Operations; Transporting | 13 | Active |
| US7700806B2 | Method for producing ethylene amines ethanol amines from monoethylene glycol (MEG) | Chemistry; Metallurgy | 11 | Active |
| US7919655B2 | Method for producing an amine | Performing Operations; Transporting | 10 | Active |
| US7388119B2 | Method for the hydrogenation of aromatic compounds with hydrogen containing residual gas | Chemistry; Metallurgy | 9 | Expired |
| US5500141A | Magnetic ink concentrate | Electricity | 9 | Expired |
| US4729785A | Preparation of acicular ferromagnetic metal particles consisting essentially of iron | Physics | 9 | Expired |
| US6870014B2 | Catalyst and method for producing polytetrahydrofurane | Performing Operations; Transporting | 8 | Expired |
| US5183709A | Acicular cobalt-modified iron oxides and their preparation | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6436873B1 | Impregnating process for the application of active composition to structured supports or monoliths | Performing Operations; Transporting | 7 | Expired |
| US8207327B2 | Catalyst and process for hydrogenating organic compounds comprising hydrogenatable groups | Performing Operations; Transporting | 7 | Active |
| US7091383B2 | Method for the production of amines | Chemistry; Metallurgy | 6 | Expired |
| US5250207A | Magnetic ink concentrate | Electricity | 6 | Expired |
| US5451253A | Preparation of transparent yellow iron oxide pigments | Chemistry; Metallurgy | 5 | Expired |
| US4913890A | Preparation of acicular .alpha.-Fe.sub.2 O.sub.3 | Chemistry; Metallurgy | 5 | Expired |
| US6024890A | Ferromagnetic pigments | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.