Lightswitch Safety Systems, Inc.
5Patents
0Active
5Granted
30Portfolio score
Filing activity: Jul 2, 2004 → Jul 23, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7342210B2 | Remote control for auto-darkening lens systems and method | Human Necessities | 113 | Expired |
| US7150047B2 | Indicator layout on an auto-darkening lens for use in welding | Human Necessities | 83 | Expired |
| US7501613B2 | Light detecting and angle of view compensation for optical devices and method | Physics | 20 | Expired |
| US7161135B2 | Multi-stage sensor for an auto-darkening lens for use in welding and method | Performing Operations; Transporting | 14 | Expired |
| US7550698B2 | Light sensor arrangement for auto-darkening lenses and method | Human Necessities | 9 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.