US 6879754
Drop-before-add optical switching and routing system employing grating-based wavelength selective switches
expired A61KA61K31/40A61K31/44
Quick answer
US patent 6879754 (Drop-before-add optical switching and routing system employing grating-based wavelength selective switches) held by Integrated Optics Communications Corp. expires Mon Apr 07 2025 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Integrated Optics Communications Corp.
- Grant date
- Tue Apr 12 2005 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Apr 07 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 19
- CPC classes
- A61K, A61K31/40, A61K31/44, A61K31/63