David Engel
4Patents
4h-index
6Co-inventors
43Inventor score
Filing activity: Sep 14, 1994 → Sep 27, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5544382A | Pacing toothbrush | Human Necessities | 134 | Expired |
| USD616930S1 | Folding envelope | General | 38 | Expired |
| US9132754B2 | Safety seat | Performing Operations; Transporting | 16 | Active |
| US9283874B2 | Shock absorbing mechanism with feet protection for vehicle and aircraft seats | Emerging Cross-Sectional Technologies | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.