EM4, Inc.
6Patents
3Active
6Granted
36Portfolio score
Filing activity: Apr 25, 2003 → Jun 20, 2008 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7326915B2 | Wavelength stabilization for broadband light sources | Electricity | 16 | Expired |
| US7160368B1 | System and method for gettering gas-phase contaminants within a sealed enclosure | Electricity | 14 | Expired |
| US7309175B1 | Reducing heating from non-coupled light in power transmitting optical fibers | Physics | 6 | Active |
| US8022352B2 | Flexible substrate with etched lens array | Electricity | 4 | Active |
| US7297926B2 | Compound eye image sensor design | Electricity | 3 | Expired |
| US7515807B2 | Hermetic fiber feedthrough | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.