US 6891989
Optical switch systems using waveguide grating-based wavelength selective switch modules
expired A61KA61K31/40A61K31/44
Quick answer
US patent 6891989 (Optical switch systems using waveguide grating-based wavelength selective switch modules) held by Integrated Optics Communications Corp. expires Mon May 05 2025 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Integrated Optics Communications Corp.
- Grant date
- Tue May 10 2005 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon May 05 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 5
- CPC classes
- A61K, A61K31/40, A61K31/44, A61K31/63