Michael E. Bitzel
9Patents
8h-index
18Co-inventors
66Inventor score
Filing activity: Oct 26, 1981 → Jan 29, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4912805A | Dual-purpose rotating brush for vacuum cleaner | Human Necessities | 63 | Expired |
| US4920606A | Electrical power circuit for a vacuum cleaner | Human Necessities | 45 | Expired |
| US4841594A | Cordless vacuum cleaner with power brush | Human Necessities | 38 | Expired |
| US6350087B1 | Tool-free collet tightener | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4928346A | Hand-held vacuum cleaner with power brush | Human Necessities | 33 | Expired |
| US4385276A | Mounting of semiconductor sensing means for an electromagnetic tachometer in a portable electric tool | Electricity | 18 | Expired |
| US4947514A | Internal contact for a charging circuit | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5526596A | Electric iron with storage base and method of storing the iron | Textiles; Paper | 16 | Expired |
| US6648567B2 | Tool-free collet tightener | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.