A chip for separating light into different wavelengths
CA 2344534 A1 · Owner: E-Tek Dynamics · Inventors: Anthony, Philip J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a chip for separating light into different wavelengths. The chip includes a, substrate, an input waveguide an optical arrangement, and a plurality of output waveguides. The substrate, has first and second edge sections. The input waveguide is formed on the substrate and has an end for, providing light thereto located at the first edge section. The input waveguide extends from the first end, thereof in a first direction. The optical arrangement receives the light from the input waveguide and, separates the light into a pattern of light of different wavelengths. The output waveguides are formed on, the substrate. Each output waveguide receives light of a …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 3, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.