H05B 45/48
Having leds organised in strings and incorporating parallel shunting devices
Official title: having LEDs organised in strings and incorporating parallel shunting devices
H05B45/48 (Having leds organised in strings and incorporating parallel shunting devices) appears on 1,313 US grants and 1,429 published applications in this corpus.
Search patents in H05B- Granted patents
- 1,313
- Published applications
- 1,429
- Assignees
- 499
- Inventors
- 1,825
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 0 | 2 |
| 2005 | 1 | 10 |
| 2006 | 6 | 13 |
| 2007 | 6 | 10 |
| 2008 | 9 | 18 |
| 2009 | 6 | 27 |
| 2010 | 16 | 42 |
| 2011 | 16 | 72 |
| 2012 | 39 | 70 |
| 2013 | 58 | 120 |
| 2014 | 101 | 155 |
| 2015 | 130 | 172 |
| 2016 | 194 | 155 |
| 2017 | 176 | 134 |
| 2018 | 146 | 113 |
| 2019 | 130 | 86 |
| 2020 | 70 | 55 |
| 2021 | 54 | 45 |
| 2022 | 44 | 28 |
| 2023 | 28 | 38 |
| 2024 | 27 | 28 |
| 2025 | 26 | 16 |
| 2026 | 16 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Light-emitting diode circuit with parallel sequence function, light-emitting diode lamp, and light-emitting diode light string30 Jun 2026US 12,672,217 B2Semisilicon Technology Corp.
- Methods and systems for selectively activating led groups2 Jun 2026US 12,648,061 B2Current Lighting Solutions Canada Inc.
- Circuit for driving a led string8 Oct 2026US 2026/0313769 A1ams-OSRAM International GmbH
- Circuit for driving an led string1 Oct 2026US 2026/0304573 A1ams-OSRAM AG
- Color temperature controlled and low thd led lighting devices and systems and methods of driving the same24 Sep 2026US 2026/0292952 A1Lynk Labs, Inc.
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Most cited
By later US patents
- Light emitting diode multiphase driver circuit and method224US 7,081,722 B12006
- Methods and apparatus for controlling series-connected LEDs174US 7,781,979 B2Philips Solid-State Lighting Solutions, Inc. · 2010
- Apparatus, method and system for providing AC line power to lighting devices140US 8,324,840 B2Point Somee Limited Liability Company · 2012
- LED traffic signal light with automatic low-line voltage compensating circuit129US 5,457,450 AR & M Deese Inc. · 1995
- LED light source for backlighting with integrated electronics126US 7,317,403 B2Philips Lumileds Lighting Company, LLC · 2008