Light source device
US-11844167-B2 · Dec 12, 2023 · US
Circuits providing for substitution of the light source in case of its failure
Circuits providing for substitution of the light source in case of its failure · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H05B47/29 |
| Official title | Circuits providing for substitution of the light source in case of its failure |
| Display label | Circuits providing for substitution of the light source in case of its failure |
| Total patents | 68 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 7 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 8 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 11 |
| 2023 | 10 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Control method and electronic device
US-11778714-B2 · Oct 3, 2023 · US
Compensating for failed pixels in pixelated vehicle headlamps
US-11718220-B2 · Aug 8, 2023 · US
System for Checking a Luminaire Status and Method Thereof
US-2023209692-A1 · Jun 29, 2023 · US
Lighting system with illumination-balancing function and control method thereof
US-2023156895-A1 · May 18, 2023 · US
Failure modeling and management of an aerial light fixture
US-2023007760-A1 · Jan 5, 2023 · US
Light source device
US-2022338332-A1 · Oct 20, 2022 · US
Lighting system having multiple light sources and control method thereof
US-11477875-B1 · Oct 18, 2022 · US
Failure modeling and management of an aerial light fixture
US-11445593-B2 · Sep 13, 2022 · US
Method of operating an illuminating device for a vehicle and an illuminating device for a vehicle
US-11408578-B2 · Aug 9, 2022 · US
Linear Solid-State Lighting With Bidirectional Circuits
US-2022235907-A1 · Jul 28, 2022 · US
Compensating for failed pixels in pixelated vehicle headlamps
US-2022227286-A1 · Jul 21, 2022 · US
A lighting device
US-2022201828-A1 · Jun 23, 2022 · US
Self-diagnostic fault identification system for emergency lighting unit
US-2022158467-A1 · May 19, 2022 · US
Smart window and driving method thereof, and smart window system
US-2022086995-A1 · Mar 17, 2022 · US
Control method and electronic device
US-2022039242-A1 · Feb 3, 2022 · US
Self-diagnostic fault identification system for emergency lighting unit
US-11223219-B2 · Jan 11, 2022 · US
Power and communication adapter for lighting system for indoor grow application
US-2021243867-A1 · Aug 5, 2021 · US
Ethernet lighting control system and method for stage lights
US-11051385-B2 · Jun 29, 2021 · US
Power and communication adapter for lighting system for indoor grow application
US-11019699-B2 · May 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H05B47/29?
- CPC H05B47/29 is the Cooperative Patent Classification code for “Circuits providing for substitution of the light source in case of its failure.”
- How many patents are filed under CPC H05B47/29 (Circuits providing for substitution of the light source in case of its failure)?
- Our database includes 68 publications tagged with this CPC code.
- Is patent activity under CPC H05B47/29 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).