Koon For Chung
16Patents
5h-index
20Co-inventors
62Inventor score
Filing activity: Apr 27, 2005 → Mar 15, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7410007B2 | Impact rotary tool with drill mode | Performing Operations; Transporting | 48 | Expired |
| US7478979B2 | Rotatable chuck | Emerging Cross-Sectional Technologies | 46 | Active |
| US7481608B2 | Rotatable chuck | Emerging Cross-Sectional Technologies | 35 | Active |
| US9393711B2 | Hand-held knockout punch driver | Performing Operations; Transporting | 12 | Active |
| US11248620B2 | Electric blower with an axial fan and motor for sweeping and cleaning | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US11185015B2 | Hedge trimmer with a dual gear setting | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7510465B2 | Sand pad lock for sander | Performing Operations; Transporting | 1 | Active |
| US11701789B2 | Hand-held knockout punch driver | Performing Operations; Transporting | 0 | Active |
| US11991952B2 | Walk-behind electric gardening device | Human Necessities | 0 | Active |
| US12270419B2 | Electric tool | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12296424B2 | Control system for normally-on power tool | Performing Operations; Transporting | 0 | Active |
| US10252438B2 | Hand-held knockout punch driver | Performing Operations; Transporting | 0 | Active |
| US12408585B2 | Force amplified fastener for power tool implements | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12370564B2 | Outdoor surface cleaning apparatus with spray mechanism | Electricity | 0 | Active |
| US12311520B2 | Long-rod-type electric tool | Performing Operations; Transporting | 0 | Active |
| US11034047B2 | Hand-held knockout punch driver | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.