Protector Development
2Patents
0Active
2Granted
23Portfolio score
Filing activity: Sep 12, 1991 → Sep 20, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5361419A | Helmet with sound ducts | Human Necessities | 23 | Expired |
| US5632048A | Protector hearing helmet | Human Necessities | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.