Light guide device and virtual-image display device
US-2017255014-A1 · Sep 7, 2017 · US
comprising arrays of elements, e.g. microprisms · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02B27/285 |
| Official title | {comprising arrays of elements, e.g. microprisms} |
| Display label | comprising arrays of elements, e.g. microprisms |
| Total patents | 373 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 30 |
| 2016 | 28 |
| 2017 | 25 |
| 2018 | 41 |
| 2019 | 43 |
| 2020 | 39 |
| 2021 | 45 |
| 2022 | 38 |
| 2023 | 37 |
| 2024 | 26 |
| 2025 | 19 |
| 2026 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2017255014-A1 · Sep 7, 2017 · US
US-9664903-B2 · May 30, 2017 · US
US-9488848-B2 · Nov 8, 2016 · US
US-2016320640-A1 · Nov 3, 2016 · US
US-2016313566-A1 · Oct 27, 2016 · US
US-2016307483-A1 · Oct 20, 2016 · US
US-9467619-B2 · Oct 11, 2016 · US
US-2016291913-A1 · Oct 6, 2016 · US
US-9448415-B2 · Sep 20, 2016 · US
US-2016246068-A1 · Aug 25, 2016 · US
US-9406111-B2 · Aug 2, 2016 · US
US-2016216524-A1 · Jul 28, 2016 · US
US-2016199935-A1 · Jul 14, 2016 · US
US-2016170292-A1 · Jun 16, 2016 · US
US-9341855-B2 · May 17, 2016 · US
US-2016124239-A1 · May 5, 2016 · US
US-9310619-B2 · Apr 12, 2016 · US
US-2016097936-A1 · Apr 7, 2016 · US
US-9304323-B2 · Apr 5, 2016 · US
US-2016094818-A1 · Mar 31, 2016 · US
Answers are generated from the same data shown on this page.