H10K 71/30
Doping active layers
Official title: Doping active layers, e.g. electron transporting layers
H10K71/30 (Doping active layers) appears on 545 US grants and 709 published applications in this corpus.
Search patents in H10K- Granted patents
- 545
- Published applications
- 709
- Assignees
- 295
- Inventors
- 1,470
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 2 |
| 2002 | 1 | 11 |
| 2003 | 8 | 22 |
| 2004 | 10 | 24 |
| 2005 | 14 | 51 |
| 2006 | 18 | 33 |
| 2007 | 19 | 49 |
| 2008 | 13 | 29 |
| 2009 | 25 | 41 |
| 2010 | 29 | 38 |
| 2011 | 28 | 32 |
| 2012 | 29 | 30 |
| 2013 | 33 | 34 |
| 2014 | 24 | 29 |
| 2015 | 29 | 31 |
| 2016 | 22 | 23 |
| 2017 | 27 | 41 |
| 2018 | 31 | 35 |
| 2019 | 28 | 27 |
| 2020 | 25 | 27 |
| 2021 | 23 | 21 |
| 2022 | 23 | 17 |
| 2023 | 18 | 26 |
| 2024 | 10 | 13 |
| 2025 | 15 | 12 |
| 2026 | 10 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Light-emitting devices, preparation method thereof, and display panels30 Jun 2026US 12,672,397 B2Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Active OLED display, method for preparing an active OLED display and compound16 Jun 2026US 12,660,456 B2Novaled GmbH
- Low energy gap small molecule material and organic optoelectronic device using the same26 May 2026US 12,637,479 B2Raynergy Tek Incorporation
- Method for manufacturing a perovskite solar cell with an improved hole transport layer and a perovskite solar cell with an improved hole transport layer manufactured by the same method14 Apr 2026US 12,604,596 B2Hanwha Solutions Corporation
- Doped nickel oxide target and preparation method and application thereof7 Apr 2026US 12,595,548 B2Contemporary Amperex Technology (Hong Kong) Limited
- Light emitting element and display device10 Sep 2026US 2026/0271437 A1Sharp Display Technology Corporation
- Organic Electroluminescent Device Comprising a Radialene of Formula (I) and an Arylamine Compound, Diarylamine Compound, Triarylamine Compound or a Compound of Formula (IIA) or (IIB), and Display Device Comprising the Organic Electroluminescent Device3 Sep 2026US 2026/0262377 A1Novaled GmbH
- Thermal management for perovskite electronic devices20 Aug 2026US 2026/0247795 A1The Trustees of Princeton University
- Electroluminescent device, method for manufacturing same, and display device13 Aug 2026US 2026/0239817 A1Sharp Display Technology Corporation
- Composite material, preparation method thereof and photoelectric device30 Jul 2026US 2026/0223589 A1Tcl Technology Group Corporation
Most cited
By later US patents
- Fabrication of organic semiconductor devices using ink jet printing1,636US 6,087,196 AThe Trustees of Princeton University · 2000
- Solvent annealing process for forming a thin semiconductor film with advantageous properties429US 6,312,971 B1E Ink Corporation · 2001
- Luminescent device167US 7,572,522 B2Semiconductor Energy Laboratory Co.Ltd. · 2009
- Electron transporting and light emitting layers based on organic free radicals144US 5,811,833 AUniversity of So. Ca · 1998
- Organic electroluminescent device108US 5,093,698 AKabushiki Kaisha Toshiba · 1992