Holger Keller
9Patents
4h-index
10Co-inventors
50Inventor score
Filing activity: Nov 3, 2005 → Mar 15, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD842781S1 | Brake disc | General | 10 | Active |
| US7967115B2 | Brake disc, particularly an internally ventilated brake disc | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US8058329B2 | Nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, process for the preparation and use thereof | Chemistry; Metallurgy | 5 | Active |
| US8470916B2 | Halogen-free flame retardants | Chemistry; Metallurgy | 4 | Active |
| USD850338S1 | Brake disc | General | 3 | Active |
| USD902098S1 | Brake disc | General | 2 | Active |
| US8758492B2 | Sonotrode and device for reducing and eliminating foaming of liquid products | Performing Operations; Transporting | 2 | Active |
| US7951878B2 | Halogen-free flameproof epoxy resin formulations | Electricity | 0 | Active |
| USD969692S1 | Brake disc | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.