C09K 2211/18
Metal complexes
C09K2211/18 (Metal complexes) appears on 3,212 US grants and 5,050 published applications in this corpus.
Search patents in C09K- Granted patents
- 3,212
- Published applications
- 5,050
- Assignees
- 702
- Inventors
- 4,683
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 3 |
| 2002 | 7 | 23 |
| 2003 | 10 | 46 |
| 2004 | 27 | 95 |
| 2005 | 33 | 158 |
| 2006 | 56 | 154 |
| 2007 | 66 | 179 |
| 2008 | 58 | 121 |
| 2009 | 86 | 166 |
| 2010 | 121 | 154 |
| 2011 | 114 | 159 |
| 2012 | 98 | 157 |
| 2013 | 113 | 165 |
| 2014 | 134 | 170 |
| 2015 | 163 | 231 |
| 2016 | 162 | 301 |
| 2017 | 181 | 370 |
| 2018 | 246 | 283 |
| 2019 | 242 | 232 |
| 2020 | 226 | 239 |
| 2021 | 191 | 263 |
| 2022 | 142 | 237 |
| 2023 | 206 | 325 |
| 2024 | 201 | 366 |
| 2025 | 181 | 262 |
| 2026 | 139 | 191 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09K 2211/185Of the platinum group, i.e. os, ir, pt, ru, rh or pdIndexing code2,608
- C09K 2211/188Of other metals not provided for in one of the previous groupsIndexing code450
- C09K 2211/182Of the rare earth metals, i.e. sc, y or lanthanideIndexing code193
- C09K 2211/186Of the light metals other than alkali metals and alkaline earth metalsIndexing code188
- C09K 2211/187Of the iron group metals, i.e. fe, co or niIndexing code75
- C09K 2211/181Of the alkali metals and alkaline earth metalsIndexing code54
- C09K 2211/183Of the refractory metals, i.e. ti, v, cr, zr, nb, mo, hfIndexing code47
Recent patents
- Organic electroluminescent materials and devices6 Oct 2026US 12,757,626 B2Universal Display Corporation
- Light-emitting device including organometallic compound, electronic device including the light-emitting device, and the organometallic compound6 Oct 2026US 12,757,627 B2Samsung Display Co., Ltd.
- Organic light-emitting device and apparatus including the same6 Oct 2026US 12,757,632 B2Samsung Display Co., Ltd.
- Organic electroluminescent materials and devices29 Sep 2026US 12,751,198 B2Universal Display Corporation
- Spiro-cyclometalated iridium emitters for OLED applications22 Sep 2026US 12,741,982 B2The University of Hong Kong
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0308446 A1Universal Display Corporation
- Organic electroluminescent material and device thereof8 Oct 2026US 2026/0314158 A1Beijing Summer Sprout Technology Co., Ltd.
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314249 A1Universal Display Corporation
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314250 A1Universal Display Corporation
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314251 A1Universal Display Corporation
Most cited
By later US patents
- OLEDs doped with phosphorescent compounds1,989US 6,303,238 B1The Trustees of Princeton University · 2001
- Complexes with tridentate ligands1,471US 7,279,704 B2Universal Display Corporation · 2007
- Organic light emitting materials and devices1,135US 6,687,266 B1Universal Display Corporation · 2004
- 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