Stephen Merkel
7Patents
1h-index
2Co-inventors
41Inventor score
Filing activity: Feb 11, 1977 → Mar 19, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4136753A | Vehicle power steering system | Performing Operations; Transporting | 4 | Expired |
| US4197871A | Fluid control valve | Emerging Cross-Sectional Technologies | 1 | Expired |
| US9993715B2 | Instructional surface with haptic and optical elements | Human Necessities | 1 | Active |
| US11638864B2 | Instructional surface with haptic and optical elements | Human Necessities | 0 | Active |
| US10293240B2 | Instructional surface with haptic and optical elements | Human Necessities | 0 | Active |
| US10953306B2 | Instructional surface with haptic and optical elements | Human Necessities | 0 | Active |
| US10124983B2 | Crepe paper dispenser | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.