David Markel
5Patents
5h-index
4Co-inventors
48Inventor score
Filing activity: Aug 21, 1984 → Feb 4, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5316373A | Seat arm rest | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5271109A | Convertible sofa-bed | Human Necessities | 20 | Expired |
| US5231710A | Convertible sofa-bed | Human Necessities | 15 | Expired |
| US4639953A | Rollover back sofa bed | Human Necessities | 14 | Expired |
| US4625347A | Rollover back sofa-bed | Human Necessities | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.