Opus NV
8Patents
0Active
8Granted
25Portfolio score
Filing activity: Jan 4, 1983 → Jun 21, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4523546A | Squirrel-proof bird feeder | Human Necessities | 48 | Expired |
| USD278168S | Bird feeder | General | 26 | Expired |
| US4498423A | Bird feeder | Human Necessities | 24 | Expired |
| USD278559S | Bird feeder | General | 13 | Expired |
| USD441405S | Controller for video games | General | 5 | Expired |
| US7604991B2 | Method of generating islet beta-cells from exocrine pancreatic cells | Chemistry; Metallurgy | 4 | Expired |
| USD441404S | Controller for video games | General | 4 | Expired |
| USD442999S | Controller for video games | General | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.