John D. Birkenholz
3Patents
0h-index
7Co-inventors
27Inventor score
Filing activity: Apr 18, 2016 → Apr 22, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US11986168B2 | Devices, systems and methods for surface sampling | Physics | 0 | Active |
| US10842470B2 | Devices, systems and methods for surface sampling | Physics | 0 | Active |
| US12050162B2 | Prefilters for particle concentrators | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.