H05B 33/00
Electroluminescent light sources
H05B33/00 (Electroluminescent light sources) appears on 8,475 US grants and 10,437 published applications in this corpus.
Search patents in H05B- Granted patents
- 8,475
- Published applications
- 10,437
- Assignees
- 1,601
- Inventors
- 12,123
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 10 | 0 |
| 1978 | 13 | 0 |
| 1979 | 17 | 0 |
| 1980 | 10 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 13 | 0 |
| 1984 | 17 | 0 |
| 1985 | 18 | 0 |
| 1986 | 17 | 0 |
| 1987 | 32 | 0 |
| 1988 | 45 | 0 |
| 1989 | 43 | 0 |
| 1990 | 31 | 0 |
| 1991 | 54 | 0 |
| 1992 | 57 | 0 |
| 1993 | 39 | 0 |
| 1994 | 64 | 0 |
| 1995 | 59 | 0 |
| 1996 | 84 | 0 |
| 1997 | 88 | 0 |
| 1998 | 115 | 0 |
| 1999 | 116 | 0 |
| 2000 | 86 | 0 |
| 2001 | 88 | 48 |
| 2002 | 86 | 147 |
| 2003 | 114 | 150 |
| 2004 | 149 | 365 |
| 2005 | 132 | 396 |
| 2006 | 173 | 439 |
| 2007 | 174 | 514 |
| 2008 | 177 | 441 |
| 2009 | 213 | 480 |
| 2010 | 332 | 509 |
| 2011 | 355 | 479 |
| 2012 | 342 | 540 |
| 2013 | 415 | 717 |
| 2014 | 523 | 552 |
| 2015 | 571 | 426 |
| 2016 | 430 | 333 |
| 2017 | 425 | 357 |
| 2018 | 352 | 353 |
| 2019 | 347 | 474 |
| 2020 | 347 | 474 |
| 2021 | 326 | 427 |
| 2022 | 290 | 408 |
| 2023 | 267 | 436 |
| 2024 | 326 | 561 |
| 2025 | 296 | 273 |
| 2026 | 179 | 138 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Display device and electronic apparatus29 Sep 2026US 12,750,929 B2Sony Semiconductor Solutions Corporation
- Display device15 Sep 2026US 12,740,232 B2Semiconductor Energy Laboratory Co.Ltd.
- Humidity-sensing structural color emitting laminate and structural color display device self-powered by triboelectricity including the same laminate8 Sep 2026US 12,730,075 B2University-Industry Foundation, Yonsei University
- Charge transporting material, organic electroluminescent element, light emitting device, display device and illumination device1 Sep 2026US 12,727,381 B2UDC Ireland Limited
- Organometallic compound and organic light-emitting diode including the same25 Aug 2026US 12,715,888 B2LG Display Co., Ltd.
- Organic-light emitting diode1 Oct 2026US 2026/0298429 A1Pictiva Displays International Limited
- Organic electroluminescent materials and devices24 Sep 2026US 2026/0293513 A1UDC Ireland Limited
- Light-emitting pixels, fabrics, and related components, products, and methods3 Sep 2026US 2026/0262146 A1Purdue Research Foundation
- Solution processable rhenium chalcohalides for optoelectronic light emitting diodes27 Aug 2026US 2026/0255737 A1Northwestern University
- Method of forming light-emitting layer, method of manufacturing display device, and display device27 Aug 2026US 2026/0255777 A1Sharp Display Technology Corporation
Most cited
By later US patents
- Electroluminescent devices2,432US 5,247,190 ACambridge Capital Management Limited · 1993
- Electroluminescent device with modified thin film luminescent zone2,310US 4,769,292 AEastman Kodak Company · 1988
- OLEDs doped with phosphorescent compounds1,989US 6,303,238 B1The Trustees of Princeton University · 2001
- Vacuum deposited, non-polymeric flexible organic light emitting devices1,740US 5,844,363 AThe Trustees of Princeton Univ. · 1998
- Multicolor display devices1,567US 6,013,982 AThe Trustees of Princeton University · 2000