Dong Ma
8Patents
3h-index
12Co-inventors
50Inventor score
Filing activity: Aug 5, 1998 → Jul 5, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6371421B1 | Device for controlling the height of a swivel chair | Human Necessities | 19 | Expired |
| US6474619B1 | Tube guide for a column unit | Human Necessities | 15 | Expired |
| US6439662B2 | Spindle for a height regulating device | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US9115933B2 | Flame detection device | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US6533084B2 | Gas spring device | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7134379B2 | Gas cylinder | Emerging Cross-Sectional Technologies | 1 | Expired |
| US11713427B2 | Gasification burner | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9541283B2 | Fuel distribution device and a burner | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.