Robert MACHEN
3Patents
1h-index
7Co-inventors
41Inventor score
Filing activity: May 31, 1978 → Jun 16, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4305069A | Personal smoke and fire detector and warning unit | Emerging Cross-Sectional Technologies | 20 | Expired |
| US11969495B2 | Sulphate-free and nonionic surfactant-free cleansing composition | Human Necessities | 1 | Active |
| US12403084B2 | Cleansing composition | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.