Focal Technologies, Inc.
7Patents
1Active
7Granted
32Portfolio score
Filing activity: Dec 30, 1988 → Apr 18, 2006 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5039193A | Fibre optic single mode rotary joint | Electricity | 301 | Expired |
| US5588077A | In-line, two-pass, fiber optic rotary joint | Physics | 85 | Expired |
| US4994682A | Fiber optic continuous liquid level sensor | Emerging Cross-Sectional Technologies | 44 | Expired |
| US7372230B2 | Off-axis rotary joint | Electricity | 43 | Active |
| US4942306A | Fibre optic sensor for the continuous measurement liquids level and other parameters | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5297225A | Off-axis optical rotary joint | Physics | 30 | Expired |
| US7083200B2 | Fluid rotary union | Mechanical Engineering; Lighting; Heating | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.