Y02B 20/00
Energy efficient lighting technologies
Official title: Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Y02B20/00 (Energy efficient lighting technologies) appears on 17,331 US grants and 18,351 published applications in this corpus.
Search patents in Y02B- Granted patents
- 17,331
- Published applications
- 18,351
- Assignees
- 4,668
- Inventors
- 23,856
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 21 | 0 |
| 1978 | 13 | 0 |
| 1979 | 18 | 0 |
| 1980 | 32 | 0 |
| 1981 | 23 | 0 |
| 1982 | 30 | 0 |
| 1983 | 29 | 0 |
| 1984 | 34 | 0 |
| 1985 | 48 | 0 |
| 1986 | 44 | 0 |
| 1987 | 42 | 0 |
| 1988 | 44 | 0 |
| 1989 | 54 | 0 |
| 1990 | 67 | 0 |
| 1991 | 84 | 0 |
| 1992 | 86 | 0 |
| 1993 | 57 | 0 |
| 1994 | 84 | 0 |
| 1995 | 96 | 0 |
| 1996 | 111 | 0 |
| 1997 | 87 | 0 |
| 1998 | 134 | 0 |
| 1999 | 143 | 0 |
| 2000 | 182 | 0 |
| 2001 | 177 | 39 |
| 2002 | 174 | 198 |
| 2003 | 179 | 241 |
| 2004 | 216 | 304 |
| 2005 | 187 | 408 |
| 2006 | 261 | 447 |
| 2007 | 277 | 505 |
| 2008 | 315 | 576 |
| 2009 | 296 | 685 |
| 2010 | 397 | 831 |
| 2011 | 515 | 820 |
| 2012 | 635 | 962 |
| 2013 | 722 | 1001 |
| 2014 | 948 | 1175 |
| 2015 | 973 | 1195 |
| 2016 | 1178 | 1128 |
| 2017 | 1242 | 1255 |
| 2018 | 1119 | 1164 |
| 2019 | 1299 | 1210 |
| 2020 | 1125 | 976 |
| 2021 | 837 | 858 |
| 2022 | 686 | 669 |
| 2023 | 743 | 733 |
| 2024 | 602 | 477 |
| 2025 | 480 | 330 |
| 2026 | 173 | 164 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- LED lamp and misuse warning module thereof29 Sep 2026US 12,747,836 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Image processing device configured to regenerate timestamp and electronic device including the same15 Sep 2026US 12,739,534 B2Samsung Electronics Co., Ltd.
- Illumination device, method of controlling illumination device, and projection display apparatus25 Aug 2026US 12,717,223 B2Sony Group Corporation
- Systems and methods for tuning light sources for use with object detection algorithms25 Aug 2026US 12,718,551 B2Signify Holding B. V.
- Method and system of supplementing the spectral content of illuminating light based on a target illumination spectrum25 Aug 2026US 12,720,652 B2Sollum Technologies Inc.
- Organic-light emitting diode1 Oct 2026US 2026/0298429 A1Pictiva Displays International Limited
- Multi-functional Streetlight27 Aug 2026US 2026/0251273 A1
- Broad View Headlamp20 Aug 2026US 2026/0243401 A1Infinity X1 LLC
- Automatic switching circuit with enhanced phase-cut compatibility13 Aug 2026US 2026/0239505 A1Zhuhai Demi Technology Co., Ltd.
- Multifunctional safety indicator light circuit13 Aug 2026US 2026/0239508 A1Je Woo Corporation, Ltd.
Most cited
By later US patents
- Illumination components1,698US 6,211,626 B1Color Kinetics Incorporated · 2001
- Expandable home automation system1,640US 5,086,385 ACustom Command Systems · 1992
- Multicolored LED lighting method and apparatus1,174US 6,016,038 AColor Kinetics Incorporated · 2000
- Light emitting device having a nitride compound semiconductor and a phosphor containing a garnet fluorescent material1,017US 5,998,925 ANichia Kagaku Kogyo K. K. · 1999
- Universal lighting network methods and systems1,007US 6,548,967 B1Color Kinetics Incorporated · 2003