C09K 2211/1029
Containing one nitrogen atom as the heteroatom
Official title: containing one nitrogen atom as the heteroatom
C09K2211/1029 (Containing one nitrogen atom as the heteroatom) appears on 3,634 US grants and 5,359 published applications in this corpus.
Search patents in C09K- Granted patents
- 3,634
- Published applications
- 5,359
- Assignees
- 742
- Inventors
- 5,134
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 3 |
| 2002 | 7 | 26 |
| 2003 | 20 | 67 |
| 2004 | 44 | 125 |
| 2005 | 41 | 153 |
| 2006 | 60 | 182 |
| 2007 | 68 | 215 |
| 2008 | 63 | 168 |
| 2009 | 95 | 218 |
| 2010 | 154 | 233 |
| 2011 | 177 | 225 |
| 2012 | 150 | 223 |
| 2013 | 163 | 232 |
| 2014 | 183 | 241 |
| 2015 | 212 | 285 |
| 2016 | 227 | 396 |
| 2017 | 254 | 365 |
| 2018 | 288 | 319 |
| 2019 | 281 | 213 |
| 2020 | 245 | 223 |
| 2021 | 169 | 216 |
| 2022 | 144 | 190 |
| 2023 | 186 | 248 |
| 2024 | 145 | 240 |
| 2025 | 153 | 200 |
| 2026 | 90 | 153 |
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 electroluminescent element and electronic device6 Oct 2026US 12,753,341 B2Idemitsu Kosan Co., Ltd.
- Organic electroluminescent materials and devices6 Oct 2026US 12,757,626 B2Universal Display Corporation
- Organic electroluminescent materials and devices22 Sep 2026US 12,742,114 B2Universal Display Corporation
- Organic electroluminescent materials and devices22 Sep 2026US 12,745,556 B2Universal Display Corporation
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0308446 A1Universal Display Corporation
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314249 A1Universal Display Corporation
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314251 A1Universal Display Corporation
- Composition, light-emitting device, electronic device including the light-emitting device, electronic apparatus including the light-emitting device, and organometallic compound8 Oct 2026US 2026/0314252 A1Samsung Display Co., Ltd.
- Plurality of host materials and organic electroluminescent device comprising the same8 Oct 2026US 2026/0314260 A1
Most cited
By later US patents
- OLEDs doped with phosphorescent compounds1,989US 6,303,238 B1The Trustees of Princeton University · 2001
- Phosphorescent compounds and devices comprising the same1,017US 6,835,469 B2Universal Display Corporation · 2004
- OLEDs utilizing multidentate ligand systems1,005US 7,332,232 B2Universal Display Corporation · 2008
- Luminescent compounds with carbene ligands938US 7,393,599 B2University of Southern California · 2008
- Organic light emitting devices having reduced pixel shrinkage909US 7,087,321 B2Universal Display Corporation · 2006