Y02B 20/40
Control techniques providing energy savings
Official title: Control techniques providing energy savings, e.g. smart controller or presence detection
Y02B20/40 (Control techniques providing energy savings) appears on 7,307 US grants and 8,315 published applications in this corpus.
Search patents in Y02B- Granted patents
- 7,307
- Published applications
- 8,315
- Assignees
- 2,341
- Inventors
- 11,181
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 11 | 0 |
| 1981 | 5 | 0 |
| 1982 | 10 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 7 | 0 |
| 1986 | 11 | 0 |
| 1987 | 10 | 0 |
| 1988 | 9 | 0 |
| 1989 | 15 | 0 |
| 1990 | 16 | 0 |
| 1991 | 13 | 0 |
| 1992 | 16 | 0 |
| 1993 | 11 | 0 |
| 1994 | 15 | 0 |
| 1995 | 20 | 0 |
| 1996 | 20 | 0 |
| 1997 | 18 | 0 |
| 1998 | 27 | 0 |
| 1999 | 23 | 0 |
| 2000 | 31 | 0 |
| 2001 | 32 | 4 |
| 2002 | 21 | 28 |
| 2003 | 21 | 35 |
| 2004 | 35 | 34 |
| 2005 | 27 | 53 |
| 2006 | 29 | 56 |
| 2007 | 35 | 82 |
| 2008 | 44 | 97 |
| 2009 | 46 | 136 |
| 2010 | 71 | 198 |
| 2011 | 80 | 190 |
| 2012 | 127 | 300 |
| 2013 | 186 | 305 |
| 2014 | 251 | 393 |
| 2015 | 306 | 547 |
| 2016 | 469 | 588 |
| 2017 | 625 | 742 |
| 2018 | 620 | 751 |
| 2019 | 767 | 740 |
| 2020 | 707 | 674 |
| 2021 | 561 | 615 |
| 2022 | 477 | 478 |
| 2023 | 530 | 535 |
| 2024 | 428 | 349 |
| 2025 | 362 | 252 |
| 2026 | 130 | 133 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Controller for controlling a plurality of lighting units in a space and a method thereof25 Aug 2026US 12,720,657 B2Signify Holding B. V.
- Techniques and remote control for wireless control of a smart lamp or smart illumination system25 Aug 2026US 12,720,660 B2Ledvance GmbH
- Organic-light emitting diode1 Oct 2026US 2026/0298429 A1Pictiva Displays International Limited
- Broad View Headlamp20 Aug 2026US 2026/0243401 A1Infinity X1 LLC
- Multifunctional safety indicator light circuit13 Aug 2026US 2026/0239508 A1Je Woo Corporation, Ltd.
- Portable lighting device with automatic dimming functionality13 Aug 2026US 2026/0239511 A1Milwaukee Electric Tool Corporation
- Dmx address configuration for luminaire13 Aug 2026US 2026/0239515 A1Aputure Imaging Industries Co., Ltd.
Most cited
By later US patents
- Expandable home automation system1,640US 5,086,385 ACustom Command Systems · 1992
- Universal lighting network methods and systems1,007US 6,548,967 B1Color Kinetics Incorporated · 2003
- Smart light bulb852US 6,528,954 B1Color Kinetics Incorporated · 2003
- Control system for automotive vehicle headlamps and other vehicle equipment626US 5,537,003 AGentex Corporation · 1996
- Home automation system and method572US 6,912,429 B1Destiny Networks, Inc. · 2005