H10K 50/18
Carrier blocking layers
H10K50/18 (Carrier blocking layers) appears on 1,415 US grants and 2,110 published applications in this corpus.
Search patents in H10K- Granted patents
- 1,415
- Published applications
- 2,110
- Assignees
- 274
- Inventors
- 2,555
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 4 |
| 2002 | 1 | 10 |
| 2003 | 12 | 18 |
| 2004 | 6 | 36 |
| 2005 | 18 | 30 |
| 2006 | 20 | 35 |
| 2007 | 18 | 39 |
| 2008 | 9 | 27 |
| 2009 | 18 | 33 |
| 2010 | 34 | 33 |
| 2011 | 28 | 31 |
| 2012 | 21 | 49 |
| 2013 | 35 | 47 |
| 2014 | 32 | 41 |
| 2015 | 51 | 79 |
| 2016 | 47 | 95 |
| 2017 | 68 | 102 |
| 2018 | 73 | 163 |
| 2019 | 91 | 159 |
| 2020 | 103 | 165 |
| 2021 | 125 | 138 |
| 2022 | 131 | 195 |
| 2023 | 104 | 179 |
| 2024 | 122 | 166 |
| 2025 | 154 | 129 |
| 2026 | 89 | 107 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Organic light emitting device and display apparatus29 Sep 2026US 12,751,131 B2Boe Technology Group Co., Ltd.
- Display panels and display devices29 Sep 2026US 12,751,134 B2Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Display substrate and method for preparing the same, and display device22 Sep 2026US 12,745,508 B2Boe Technology Group Co., Ltd.
- Sheet resistance component15 Sep 2026US 12,740,229 B2Novaled GmbH
- Organic light emitting device8 Sep 2026US 12,729,339 B2LG Display Co., Ltd.
- Light-emitting device including organometallic compound, electronic apparatus including the light-emitting device, and the organometallic compound8 Oct 2026US 2026/0314172 A1Samsung Display Co., Ltd.
- Organic light-emitting device1 Oct 2026US 2026/0305160 A1LG Chem.Ltd.
- Organic electroluminescent materials and devices1 Oct 2026US 2026/0305167 A1Universal Display Corporation
- Mixtures, formulations, and uses thereof in organic electronic devices24 Sep 2026US 2026/0293417 A1Zhejiang Brilliant Optoelectronic Technology Co.,Ltd.
- Boron-nitrogen-containing organic compound and application thereof in organic light-emitting diode device24 Sep 2026US 2026/0293422 A1Boe Technology Group Co., Ltd.
Most cited
By later US patents
- Structure for high efficiency electroluminescent device1,895US 6,097,147 AThe Trustees of Princeton University · 2000
- Intersystem crossing agents for efficient utilization of excitons in organic light emitting devices268US 6,310,360 B1The Trustees of Princeton University · 2001
- Organometallic complexes as phosphorescent emitters in organic LEDs235US 6,830,828 B2The Trustees of Princeton University · 2004
- Phosphorescent oled having double exciton-blocking layers170US 8,034,465 B2Global OLED Technology LLC · 2011
- Organic electroluminescent element and production method thereof124US 6,566,807 B1Sharp Kabushiki Kaisha · 2003