OBO PRO.2 INC.
4Patents
4Active
4Granted
44Portfolio score
Filing activity: Oct 23, 2007 → May 14, 2019 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7854373B2 | Packing box for headphones | Performing Operations; Transporting | 5 | Active |
| US9571933B2 | Multi-channel headphone | Electricity | 4 | Active |
| US9113259B2 | Tunable multichannel headphone and method for assembling the same | Emerging Cross-Sectional Technologies | 4 | Active |
| US10834492B2 | Modularized wireless earphone | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.