Burkhard Freund
9Patents
7h-index
14Co-inventors
56Inventor score
Filing activity: Mar 25, 1997 → Sep 4, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6180076A | Readily dispersible precipitated silica | Chemistry; Metallurgy | 35 | Expired |
| US6099818A | Carbon blacks and process for producing them | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5859120A | Carbon black and processes for manufacturing | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6391274B1 | Carbon black | Chemistry; Metallurgy | 26 | Expired |
| US6268424A | Precipitated silicic acid | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6056933A | Inversion carbon blacks and method for their manufacture | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6251983A | Inversion carbon blacks and method for their manufacture | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6762236B2 | Carbon black, process for its production and its use | Chemistry; Metallurgy | 3 | Expired |
| US8735488B2 | Black, method for the production thereof, and use thereof | Chemistry; Metallurgy | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.