Lighting device with motion sensor
US-2020340658-A1 · Oct 29, 2020 · US
for filtering out infrared radiation (dichroic reflectors F21V7/22; using liquid-filled chambers F21V9/12)
for filtering out infrared radiation (dichroic reflectors F21V7/22; using liquid-filled chambers F21V9/12) · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F21V9/04 |
| Official title | for filtering out infrared radiation (dichroic reflectors F21V7/22; using liquid-filled chambers F21V9/12) |
| Display label | for filtering out infrared radiation (dichroic reflectors F21V7/22; using liquid-filled chambers F21V9/12) |
| Total patents | 77 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 9 |
| 2017 | 14 |
| 2018 | 6 |
| 2019 | 10 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lamp cover
US-10759916-B2 · Sep 1, 2020 · US
Integrating point source for texture projecting bulb
US-2020232622-A1 · Jul 23, 2020 · US
Integrating point source for texture projecting bulb
US-10612749-B2 · Apr 7, 2020 · US
Bi-material transmitting optical element
US-10533731-B2 · Jan 14, 2020 · US
Lamp cover
US-2020002486-A1 · Jan 2, 2020 · US
Methods and systems using photonic crystal-based integrated computational elements
US-10466167-B2 · Nov 5, 2019 · US
Integrating point source for texture projecting bulb
US-2019316753-A1 · Oct 17, 2019 · US
Assymetric spot area spoke reduction
US-10416547-B2 · Sep 17, 2019 · US
Daylighting system
US-10400969-B2 · Sep 3, 2019 · US
Integrating point source for texture projecting bulb
US-10337691-B2 · Jul 2, 2019 · US
Assymetric spot area spoke reduction
US-2019155136-A1 · May 23, 2019 · US
Daylight redirecting window covering
US-2019107264-A1 · Apr 11, 2019 · US
OLED lighting for avionic keypanels
US-10239634-B2 · Mar 26, 2019 · US
Downlight structures for direct/indirect lighting
US-10184623-B2 · Jan 22, 2019 · US
Bi-material transmitting optical element
US-2019017683-A1 · Jan 17, 2019 · US
Glazed roof comprising illuminating means and means for controlling light transmission
US-10139080-B2 · Nov 27, 2018 · US
Daylighting system
US-2018283635-A1 · Oct 4, 2018 · US
Vehicle head lamp driving apparatus and vehicle provided with same
US-10029607-B2 · Jul 24, 2018 · US
Daylighting system
US-10006598-B2 · Jun 26, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F21V9/04?
- CPC F21V9/04 is the Cooperative Patent Classification code for “for filtering out infrared radiation (dichroic reflectors F21V7/22; using liquid-filled chambers F21V9/12).”
- How many patents are filed under CPC F21V9/04 (for filtering out infrared radiation (dichroic reflectors F21V7/22; using liquid-filled chambers F21V9/12))?
- Our database includes 77 publications tagged with this CPC code.
- Is patent activity under CPC F21V9/04 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).