First Rank Co., Ltd.
8Patents
5Active
8Granted
37Portfolio score
Filing activity: Apr 17, 2001 → Aug 19, 2010 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6467098B1 | Goggles with removable lenses | Human Necessities | 13 | Expired |
| US7146653B2 | Side buckle structure of swimming goggles | Emerging Cross-Sectional Technologies | 12 | Expired |
| US8117680B1 | Swimming goggles buckle | Emerging Cross-Sectional Technologies | 12 | Active |
| US7640633B2 | Buckle set of swimming goggles | Emerging Cross-Sectional Technologies | 11 | Active |
| US7921523B2 | Structure of buckle set | Emerging Cross-Sectional Technologies | 6 | Active |
| US8108973B2 | Side buckle of swimming goggles | Emerging Cross-Sectional Technologies | 1 | Active |
| US7143484B2 | Swimming goggle buckle | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7730556B2 | Nose strap jointing structure for swimming goggles/mask | Human Necessities | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.