Bidirectional Illuminated LED Bead Triggered by Power Line Pulse Signals
US-2024422877-A1 · Dec 19, 2024 · US
Pulse-control circuits
Pulse-control circuits · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H05B45/32 |
| Official title | Pulse-control circuits |
| Display label | Pulse-control circuits |
| Total patents | 282 |
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 | 8 |
| 2016 | 16 |
| 2017 | 21 |
| 2018 | 18 |
| 2019 | 31 |
| 2020 | 31 |
| 2021 | 43 |
| 2022 | 33 |
| 2023 | 34 |
| 2024 | 28 |
| 2025 | 15 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Light-emitting device
US-2024029638-A1 · Jan 25, 2024 · US
Led-based lighting control network communication
US-2018376568-A1 · Dec 27, 2018 · US
Visual Privacy Protection System
US-2018359403-A1 · Dec 13, 2018 · US
Power line communication system and method of auto-commissioning system nodes
US-10122412-B2 · Nov 6, 2018 · US
Led tube lamp
US-2018317291-A1 · Nov 1, 2018 · US
Lighting circuit and vehicular turn signal lamp
US-10081301-B2 · Sep 25, 2018 · US
LED-based lighting control network communication
US-10070503-B2 · Sep 4, 2018 · US
Power line communication system and method of auto-commissioning system nodes
US-2018219582-A1 · Aug 2, 2018 · US
Sequencing method for light-emitting diode lamp string
US-10039164-B1 · Jul 31, 2018 · US
Light-emitting diode arrangement and driver arrangement for an electronic device
US-10032107-B2 · Jul 24, 2018 · US
LED tube lamp
US-10021742-B2 · Jul 10, 2018 · US
Encoder and light source of encoder
US-2018156640-A1 · Jun 7, 2018 · US
Universal lighting network methods and systems
US-9955541-B2 · Apr 24, 2018 · US
Apparatus for controlling driver current for illumination source
US-2018102407-A1 · Apr 12, 2018 · US
Led fixture and led lighting arrangement comprising such led fixture
US-2017339768-A1 · Nov 23, 2017 · US
LED tube lamp
US-9826585-B2 · Nov 21, 2017 · US
Light-emitting diode headlight driver
US-9820343-B1 · Nov 14, 2017 · US
Control unit for a led assembly and lighting system
US-2017325296-A1 · Nov 9, 2017 · US
Light emitting diode (LED) tube lamp
US-9807826-B2 · Oct 31, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H05B45/32?
- CPC H05B45/32 is the Cooperative Patent Classification code for “Pulse-control circuits.”
- How many patents are filed under CPC H05B45/32 (Pulse-control circuits)?
- Our database includes 282 publications tagged with this CPC code.
- Is patent activity under CPC H05B45/32 growing?
- Publication counts under this code: 28 in 2024 vs 15 in 2025 (latest complete years).