Oprel AG
1Patents
0Active
1Granted
19Portfolio score
Filing activity: Apr 4, 1997 → Apr 4, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5854667A | Electrooptical filter cartridge and a method for manufacturing the same | Human Necessities | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.