C09K 2211/1074
Containing more than three nitrogen atoms as heteroatoms
Official title: containing more than three nitrogen atoms as heteroatoms
C09K2211/1074 (Containing more than three nitrogen atoms as heteroatoms) appears on 304 US grants and 442 published applications in this corpus.
Search patents in C09K- Granted patents
- 304
- Published applications
- 442
- Assignees
- 132
- Inventors
- 956
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 5 | 2 |
| 2003 | 4 | 7 |
| 2004 | 4 | 6 |
| 2005 | 2 | 16 |
| 2006 | 2 | 10 |
| 2007 | 6 | 14 |
| 2008 | 6 | 9 |
| 2009 | 7 | 23 |
| 2010 | 9 | 13 |
| 2011 | 19 | 19 |
| 2012 | 11 | 15 |
| 2013 | 5 | 11 |
| 2014 | 16 | 17 |
| 2015 | 14 | 28 |
| 2016 | 17 | 33 |
| 2017 | 32 | 39 |
| 2018 | 28 | 27 |
| 2019 | 21 | 15 |
| 2020 | 26 | 20 |
| 2021 | 8 | 21 |
| 2022 | 8 | 13 |
| 2023 | 13 | 35 |
| 2024 | 15 | 27 |
| 2025 | 11 | 10 |
| 2026 | 11 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Organometallic compound and light-emitting device including the same15 Sep 2026US 12,740,313 B2Samsung Display Co., Ltd.
- Light-emitting device including organometallic compound, electronic apparatus including the light-emitting device, and the organometallic compound18 Aug 2026US 12,713,828 B2Samsung Display Co., Ltd.
- Organic light-emitting device and apparatus including the same14 Jul 2026US 12,685,016 B2Samsung Display Co., Ltd.
- Ligands for nano-sized materials26 May 2026US 12,637,486 B2Samsung Electronics Co., Ltd.
- Organic electroluminescent materials and devices12 May 2026US 12,628,547 B2Universal Display Corporation
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314250 A1Universal Display Corporation
- Organic electroluminescent materials and devices6 Aug 2026US 2026/0231668 A1Universal Display Corporation
- Organic electroluminescent compound and organic electroluminescent device comprising the same16 Jul 2026US 2026/0206412 A1
- Phyllochlorin analogues suitable for use in photodynamic therapy (PDT)9 Jul 2026US 2026/0193265 A1RMW CHO Group Limited
- Organic electroluminescent compound, a plurality of host materials, and organic electroluminescent device comprising the same2 Jul 2026US 2026/0190601 A1
Most cited
By later US patents
- OLEDs doped with phosphorescent compounds1,989US 6,303,238 B1The Trustees of Princeton University · 2001
- Luminescent compounds with carbene ligands938US 7,393,599 B2University of Southern California · 2008
- Compound for use in organic electroluminescent device and organic electroluminescent device195US 7,993,760 B2Nippon Steel Chemical Co., Ltd. · 2011
- Light-emitting element192US 9,604,928 B2Semiconductor Energy Laboratory Co.Ltd. · 2017
- Phosphorescent OLEDs with exciton blocking layer183US 7,597,967 B2Eastman Kodak Company · 2009