H10K 85/6574
Comprising only oxygen in the heteroaromatic polycondensed ring system
Official title: {comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes}
H10K85/6574 (Comprising only oxygen in the heteroaromatic polycondensed ring system) appears on 3,034 US grants and 5,854 published applications in this corpus.
Search patents in H10K- Granted patents
- 3,034
- Published applications
- 5,854
- Assignees
- 341
- Inventors
- 3,722
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 4 |
| 2002 | 4 | 3 |
| 2003 | 8 | 17 |
| 2004 | 11 | 15 |
| 2005 | 7 | 20 |
| 2006 | 7 | 11 |
| 2007 | 7 | 31 |
| 2008 | 7 | 18 |
| 2009 | 12 | 29 |
| 2010 | 20 | 36 |
| 2011 | 25 | 47 |
| 2012 | 26 | 68 |
| 2013 | 37 | 78 |
| 2014 | 42 | 149 |
| 2015 | 83 | 239 |
| 2016 | 103 | 309 |
| 2017 | 162 | 301 |
| 2018 | 224 | 263 |
| 2019 | 218 | 341 |
| 2020 | 205 | 405 |
| 2021 | 208 | 463 |
| 2022 | 270 | 578 |
| 2023 | 322 | 699 |
| 2024 | 351 | 672 |
| 2025 | 377 | 610 |
| 2026 | 286 | 448 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Photoelectric conversion element, imaging element, optical sensor, and compound8 Oct 2026US 2026/0314154 A1FUJIFILM Corporation
- Photoelectric conversion element containing photoelectric conversion element material8 Oct 2026US 2026/0314156 A1Nippon Steel Chemical & Material Co., Ltd.
- Organic electroluminescent material and device thereof8 Oct 2026US 2026/0314158 A1Beijing Summer Sprout Technology Co., Ltd.
- Polycyclic compounds and organic light-emitting device comprising the same8 Oct 2026US 2026/0314162 A1Sfc Co., Ltd.
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Most cited
By later US patents
- Compound for use in organic electroluminescent device and organic electroluminescent device195US 7,993,760 B2Nippon Steel Chemical Co., Ltd. · 2011
- Spiro compounds and their use as electroluminescence materials179US 5,840,217 AHoechst Aktiengesellschaft · 1998
- Organic electroluminescent elements for stable blue electroluminescent devices153US 5,972,247 AEastman Kodak Company · 1999
- Electroluminescent element142US 5,126,214 AIdemitsu Kosan Co., Ltd. · 1992
- Organic electroluminecence device134US 10,435,350 B2Idemitsu Kosan Co., Ltd. · 2019