Per-Ake Hellman
1Patents
1h-index
1Co-inventors
22Inventor score
Filing activity: Feb 28, 1983 → Feb 28, 1983
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4547831A | Surge arrester | Electricity | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.