Multiple light source configuration
US-12591129-B2 · Mar 31, 2026 · US
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for portable lighting devices
for portable lighting devices · 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 | F21V13/045 |
| Official title | {for portable lighting devices} |
| Display label | for portable lighting devices |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multiple Light Source Configuration
US-2025216668-A1 · Jul 3, 2025 · US
Fixture including light guide and aerosol generating device including the fixture
US-11493184-B2 · Nov 8, 2022 · US
Electric working machine, illuminator attachment, and method of radiating light from electric working machine
US-11280488-B2 · Mar 22, 2022 · US
Electric working machine, illuminator attachment, and method of radiating light from electric working machine
US-2021222866-A1 · Jul 22, 2021 · US
Fixture including light guide and aerosol generating device including the fixture
US-2021033261-A1 · Feb 4, 2021 · US
Optical diffuser for a portable light
US-10533727-B2 · Jan 14, 2020 · US
Illumination device
US-10502392-B2 · Dec 10, 2019 · US
LED illumination module with fixed optic and variable emission pattern
US-10420177-B2 · Sep 17, 2019 · US
Portable light having a forward facing light and a rearward facing light
US-10378744-B2 · Aug 13, 2019 · US
LED flashlight
US-10253951-B2 · Apr 9, 2019 · US
Optical diffuser for a portable light
US-2018283654-A1 · Oct 4, 2018 · US
Illumination device
US-2018231209-A1 · Aug 16, 2018 · US
Portable light and optical diffuser therefor
US-10030847-B2 · Jul 24, 2018 · US
LED Illumination Module With Fixed Optic and Variable Emission Pattern
US-2018192484-A1 · Jul 5, 2018 · US
Lighting device construction
US-9976724-B2 · May 22, 2018 · US
Side lit indirect flexible lighting system
US-9816681-B1 · Nov 14, 2017 · US
LED Flashlight
US-2017299147-A1 · Oct 19, 2017 · US
LED Flashlight
US-2017299150-A1 · Oct 19, 2017 · US
Portable light having a forward facing light and a rearward facing light
US-2017284646-A1 · Oct 5, 2017 · US