Optically functional multilayer structure suitable for large area illumination and related method of manufacture
US-11914184-B2 · Feb 27, 2024 · US
with a refractive index gradient (rugate filters G02B5/289) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02B5/0883 |
| Official title | {with a refractive index gradient (rugate filters G02B5/289)} |
| Display label | with a refractive index gradient (rugate filters G02B5/289) |
| Total patents | 75 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2017 | 3 |
| 2018 | 11 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 17 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 12 |
| 2025 | 4 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11914184-B2 · Feb 27, 2024 · US
US-2023375934-A1 · Nov 23, 2023 · US
US-2023324724-A1 · Oct 12, 2023 · US
US-11782266-B2 · Oct 10, 2023 · US
US-2023258848-A1 · Aug 17, 2023 · US
US-11714301-B2 · Aug 1, 2023 · US
US-11703627-B1 · Jul 18, 2023 · US
US-11543499-B2 · Jan 3, 2023 · US
US-11520082-B2 · Dec 6, 2022 · US
US-11500142-B1 · Nov 15, 2022 · US
US-2022263989-A1 · Aug 18, 2022 · US
US-2022187515-A1 · Jun 16, 2022 · US
US-2022120866-A1 · Apr 21, 2022 · US
US-2021396851-A1 · Dec 23, 2021 · US
US-11187789-B2 · Nov 30, 2021 · US
US-2021356564-A1 · Nov 18, 2021 · US
US-2021293965-A1 · Sep 23, 2021 · US
US-11125862-B2 · Sep 21, 2021 · US
US-11105899-B2 · Aug 31, 2021 · US
US-11073766-B2 · Jul 27, 2021 · US
Answers are generated from the same data shown on this page.