Daniel Joel Freschl
16Patents
5h-index
25Co-inventors
62Inventor score
Filing activity: Sep 20, 2010 → May 3, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD658323S1 | Portable illuminating device | General | 55 | Expired |
| US10433739B2 | Multi-channel photoplethysmography sensor | Human Necessities | 44 | Active |
| US8517559B1 | Manually-energizing portable light-emitting device with multifunction cord | Mechanical Engineering; Lighting; Heating | 23 | Active |
| USD714995S1 | Foldable light diffuser | General | 9 | Active |
| US9763584B2 | Intermeshing light barrier features in optical physiological parameter measurement device | Human Necessities | 6 | Active |
| USD941468S1 | Electronic stethoscope device | General | 5 | Active |
| US11850071B1 | Pressure sensor integration into wearable device | Human Necessities | 2 | Active |
| US10874345B2 | Automated detection of breathing disturbances | Physics | 1 | Active |
| US10842394B2 | In-canal heart rate monitoring apparatus | Human Necessities | 1 | Active |
| US11741931B2 | Electronic stethoscope device with noise cancellation | Electricity | 1 | Active |
| US9757046B2 | Intermeshing light barrier features in optical physiological parameter measurement device | Human Necessities | 0 | Active |
| US11678838B2 | Automated detection of breathing disturbances | Physics | 0 | Active |
| US11633117B2 | Multi-channel photoplethysmography sensor | Human Necessities | 0 | Active |
| US11666235B2 | In-canal heart rate monitoring apparatus | Human Necessities | 0 | Active |
| US11998355B2 | Pressure sensor integration into wearable device | Human Necessities | 0 | Active |
| US9743849B2 | Intermeshing light barrier features in optical physiological parameter measurement device | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.