C09K 2211/1048
With oxygen
Official title: with oxygen
C09K2211/1048 (With oxygen) appears on 333 US grants and 539 published applications in this corpus.
Search patents in C09K- Granted patents
- 333
- Published applications
- 539
- Assignees
- 152
- Inventors
- 982
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 0 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 12 |
| 2004 | 5 | 24 |
| 2005 | 7 | 17 |
| 2006 | 4 | 21 |
| 2007 | 10 | 34 |
| 2008 | 12 | 19 |
| 2009 | 11 | 26 |
| 2010 | 21 | 19 |
| 2011 | 21 | 14 |
| 2012 | 14 | 14 |
| 2013 | 12 | 19 |
| 2014 | 18 | 15 |
| 2015 | 16 | 27 |
| 2016 | 13 | 30 |
| 2017 | 21 | 39 |
| 2018 | 28 | 24 |
| 2019 | 27 | 16 |
| 2020 | 19 | 18 |
| 2021 | 16 | 18 |
| 2022 | 9 | 22 |
| 2023 | 8 | 42 |
| 2024 | 17 | 44 |
| 2025 | 9 | 7 |
| 2026 | 11 | 15 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Preparation method and chiral sieving application of novel 12-crown-4 covalent organic frameworks6 Oct 2026US 12,753,169 B2Chongqing University of Arts and Sciences
- Organic light-emitting device and apparatus including the same6 Oct 2026US 12,757,632 B2Samsung Display Co., Ltd.
- Organometallic compound, organic light-emitting device including the organometallic compound, and electronic apparatus including the organic light-emitting device22 Sep 2026US 12,745,557 B2Samsung Display Co., Ltd.
- Organic electroluminescent materials and devices22 Sep 2026US 12,745,558 B2Universal Display Corporation
- Skin sensitization measuring reagent, method for measuring skin sensitization, and compound26 May 2026US 12,638,394 B2FUJIFILM Corporation
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314250 A1Universal Display Corporation
- Organic electroluminescent materials and devices17 Sep 2026US 2026/0282733 A1Universal Display Corporation
- Organic electroluminescent materials and devices13 Aug 2026US 2026/0239870 A1Universal Display Corporation
- Heteroaromatic compounds for organic electroluminescent devices28 May 2026US 2026/0150576 A1UDC Ireland Limited
- Preparation method and chiral sieving application of novel 12-crown-4 covalent organic frameworks21 May 2026US 2026/0138972 A1Chongqing University of Arts and Sciences
Most cited
By later US patents
- 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
- Phosphorescent oled having double exciton-blocking layers170US 8,034,465 B2Global OLED Technology LLC · 2011
- OLEDs utilizing macrocyclic ligand systems100US 7,655,322 B2The Trustees of Princeton University · 2010
- Electroluminescent material, electroluminescent element and color conversion filter90US 6,656,608 B1Konica Corporation · 2003