Michael Freidank
1Patents
1h-index
2Co-inventors
22Inventor score
Filing activity: Mar 10, 1989 → Mar 10, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4873970A | Warning device to indicate the state of gases exhaustion of a gas filter retaining dangerous gases | Human Necessities | 45 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.