Markus Heckmann
46Patents
13h-index
40Co-inventors
81Inventor score
Filing activity: Mar 31, 2001 → Dec 13, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6869346B2 | Receptacle for grinder tools | Performing Operations; Transporting | 63 | Expired |
| US7077735B2 | System with a tool-holding fixture | Emerging Cross-Sectional Technologies | 56 | Expired |
| US6860792B2 | Hand tool comprising a sensor for emitting a signal when the tool attachment is replaced | Performing Operations; Transporting | 48 | Expired |
| US6988939B2 | Hand-guided electric tool comprising a guard | Performing Operations; Transporting | 41 | Expired |
| US6786811B2 | Grinding machine tool support | Performing Operations; Transporting | 37 | Expired |
| US6780093B2 | Tool mounting | Performing Operations; Transporting | 35 | Expired |
| US6814655B2 | Attachment for grinder | Performing Operations; Transporting | 33 | Expired |
| US6942560B2 | Attachment and rapid-chucking system, comprising a rotatably driven, disc-shaped hub | Performing Operations; Transporting | 32 | Expired |
| US6609860B2 | Hand machine tool with depth stop | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6902471B2 | Heavy-duty tool with a rotationally driven, disk-shaped hub | Performing Operations; Transporting | 29 | Expired |
| US7097548B2 | Utility tool with rotatingly driveable, disk-shaped hub | Performing Operations; Transporting | 27 | Expired |
| US7828185B2 | Electrical hand power tool with battery pack | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6701629B2 | Machine tool holding device for a circular saw blade | Emerging Cross-Sectional Technologies | 20 | Expired |
| US8134297B2 | Ballast for a discharge lamp with adaptive preheating | Electricity | 9 | Active |
| US7967079B2 | Hand-held power tool | Performing Operations; Transporting | 8 | Active |
| US8096857B2 | Power tool, in particular angle grinder | Performing Operations; Transporting | 8 | Expired |
| USD497296S1 | Grinder | General | 8 | Expired |
| US6935438B2 | Battery operated electrical tool | Performing Operations; Transporting | 5 | Expired |
| US7061781B2 | Circuit arrangement for operating light sources | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6646390B2 | EOL detection with integrated filament interrogation | Electricity | 4 | Expired |
| US7279848B2 | Electronic ballast for a lamp | Electricity | 3 | Expired |
| US6768271B2 | Ballast and method for operating a lamp | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6483256B2 | Operating device for discharge lamps with switch relief for the preheating of electrode filaments | Electricity | 3 | Expired |
| US6803731B2 | Operating circuit for a discharge lamp with early EOL detection | Electricity | 2 | Expired |
| US7154227B2 | Circuit arrangement for operating at least one light source | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.