Per Hiselius
6Patents
4h-index
7Co-inventors
46Inventor score
Filing activity: Jul 10, 1997 → Dec 8, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7766120B2 | Cap for use as hearing protection | Human Necessities | 48 | Active |
| US5970160A | Earmuff | Human Necessities | 31 | Expired |
| US5815842A | Ear protection cap with improved sound absorption | Human Necessities | 14 | Expired |
| US6427800B1 | Ear plug and method of manufacturing an ear plug | Human Necessities | 9 | Expired |
| US7589631B2 | Adaptive audio signals in portable communications devices | Electricity | 4 | Active |
| US8054966B2 | Echo cancellation and noise reduction adaptation during ringing signal playback | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.