H10K 50/82
Cathodes
H10K50/82 (Cathodes) appears on 931 US grants and 1,324 published applications in this corpus.
Search patents in H10K- Granted patents
- 931
- Published applications
- 1,324
- Assignees
- 360
- Inventors
- 2,481
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 6 |
| 2002 | 13 | 20 |
| 2003 | 17 | 21 |
| 2004 | 17 | 23 |
| 2005 | 12 | 33 |
| 2006 | 19 | 26 |
| 2007 | 10 | 27 |
| 2008 | 12 | 22 |
| 2009 | 8 | 30 |
| 2010 | 15 | 22 |
| 2011 | 12 | 27 |
| 2012 | 20 | 51 |
| 2013 | 27 | 29 |
| 2014 | 40 | 49 |
| 2015 | 51 | 98 |
| 2016 | 43 | 64 |
| 2017 | 62 | 79 |
| 2018 | 65 | 68 |
| 2019 | 64 | 69 |
| 2020 | 57 | 48 |
| 2021 | 30 | 40 |
| 2022 | 42 | 58 |
| 2023 | 44 | 143 |
| 2024 | 52 | 129 |
| 2025 | 118 | 83 |
| 2026 | 48 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aromatic amine derivative, and organic electroluminescent element using same6 Oct 2026US 12,753,145 B2Idemitsu Kosan Co., Ltd.
- Organic light-emitting diode display device29 Sep 2026US 12,751,136 B2United Microelectronics Corp.
- Organic light-emitting display device with spacer between sub-pixels29 Sep 2026US RE51,049 E1LG Display Co., Ltd.
- Organic light emitting diode display device8 Sep 2026US 12,733,345 B2LG Display Co., Ltd.
- Light-emitting device, light-emitting apparatus, electronic device, and lighting device1 Sep 2026US 12,727,321 B2Semiconductor Energy Laboratory Co.Ltd.
- Light emitting display device8 Oct 2026US 2026/0314212 A1Samsung Display Co., Ltd.
- Light-emitting substrate, manufacturing method therefor, and display apparatus24 Sep 2026US 2026/0293420 A1Beijing BOE Technology Development Co., Ltd.
- Near-infrared perovskite light-emitting diodes24 Sep 2026US 2026/0293514 A1Purdue Research Foundation
- Organic electroluminescent devices17 Sep 2026US 2026/0282652 A1The Regents of the University of Michigan
- Display panel and display apparatus27 Aug 2026US 2026/0255833 A1Beijing BOE Technology Development Co., Ltd.
Most cited
By later US patents
- Electroluminescent device with improved cathode540US 4,885,211 AEastman Kodak Company · 1989
- Organic electroluminescent device with stabilizing cathode capping layer264US 5,059,861 AEastman Kodak Company · 1991
- Electroluminescence display device239US 6,940,214 B1Sanyo Electric Co., Ltd. · 2005
- Electroluminescent device with improved cathode238US 5,059,862 AEastman Kodak Company · 1991
- Organic electroluminescent device with stabilizing fused metal particle cathode174US 5,073,446 AEastman Kodak Company · 1991