Rolf Muller
142Patents
30h-index
80Co-inventors
93Inventor score
Filing activity: Mar 18, 1974 → Apr 10, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4647161A | Fish eye lens system | Physics | 203 | Expired |
| US4164690A | Compact miniature fan | Electricity | 112 | Expired |
| USD574505S1 | Sample storage device | General | 103 | Expired |
| US5641251A | All-ceramic drill bit | Emerging Cross-Sectional Technologies | 100 | Expired |
| US4554473A | Brushless direct current motor system | Electricity | 92 | Expired |
| US4647803A | Electric motor, particularly a brushless direct current motor | Electricity | 76 | Expired |
| US4519010A | Driving mechanism for magnetic hard disc memories | Electricity | 59 | Expired |
| US4115715A | Brushless d. c. motor | Electricity | 59 | Expired |
| US4394594A | Motor with a disk rotor | Electricity | 57 | Expired |
| US4604665A | Driving mechanism for magnetic hard disc | Electricity | 57 | Expired |
| US4698542A | Brushless direct current motor system | Electricity | 56 | Expired |
| US4566593A | Carton formed from a plurality of packages | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5174588A | Automatically locking chuck for drill or the like | Emerging Cross-Sectional Technologies | 54 | Expired |
| US4099104A | Brushless d-c motor system | Electricity | 52 | Expired |
| US4701653A | Disk drive with internal brake and static discharge | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4556052A | Medical instrument with internal light source for illuminating body cavities | Human Necessities | 47 | Expired |
| US5158177A | Wraparound multipack with carrying handle | Performing Operations; Transporting | 40 | Expired |
| US4806832A | Fan with temperature controlled rotation speed | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5382853A | Brushless DC drive motor with external rotor for use in disc drives and like devices | Electricity | 39 | Expired |
| US4322666A | Brushless, permanent magnet d-c pulse current controlled, essentially uniform torque dynamo electric machine particularly motor | Electricity | 38 | Expired |
| US6158586A | Tightening arrangement for paperboard wrap and tightening section for apparatus for applying a wrap around a plurality of articles | Performing Operations; Transporting | 35 | Expired |
| US4535275A | Brushless D-C motor system with improved commutation circuit | Electricity | 35 | Expired |
| US5418416A | Brushless three-phase DC motor | Electricity | 34 | Expired |
| US4804892A | Collectorless direct current motor, driver circuit for a drive and method of operating a collectorless direct current motor | Electricity | 33 | Expired |
| US4376261A | Two-pulse brushless d.c. motor | Electricity | 33 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.