H10K 85/6572
Comprising only nitrogen in the heteroaromatic polycondensed ring system
Official title: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole}
H10K85/6572 (Comprising only nitrogen in the heteroaromatic polycondensed ring system) appears on 6,628 US grants and 11,172 published applications in this corpus.
Search patents in H10K- Granted patents
- 6,628
- Published applications
- 11,172
- Assignees
- 780
- Inventors
- 6,888
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
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| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 8 | 5 |
| 2002 | 22 | 30 |
| 2003 | 26 | 43 |
| 2004 | 40 | 71 |
| 2005 | 31 | 57 |
| 2006 | 22 | 89 |
| 2007 | 32 | 145 |
| 2008 | 27 | 136 |
| 2009 | 36 | 186 |
| 2010 | 114 | 219 |
| 2011 | 141 | 208 |
| 2012 | 166 | 300 |
| 2013 | 173 | 307 |
| 2014 | 192 | 463 |
| 2015 | 341 | 542 |
| 2016 | 360 | 635 |
| 2017 | 420 | 638 |
| 2018 | 487 | 600 |
| 2019 | 488 | 672 |
| 2020 | 457 | 762 |
| 2021 | 428 | 746 |
| 2022 | 478 | 815 |
| 2023 | 570 | 1008 |
| 2024 | 534 | 1064 |
| 2025 | 577 | 838 |
| 2026 | 423 | 593 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Material for luminescence element and luminescence element using the same890US 6,528,187 B1Fuji Photo Film Co., Ltd. · 2003
- Organometallic complexes as phosphorescent emitters in organic LEDs235US 6,830,828 B2The Trustees of Princeton University · 2004
- Compound for use in organic electroluminescent device and organic electroluminescent device195US 7,993,760 B2Nippon Steel Chemical Co., Ltd. · 2011
- Fluorescence and delayed fluorescence-type organic light-emitting material and element194US 8,993,129 B2Kyushu University, National University Corporation · 2015
- Light-emitting element192US 9,604,928 B2Semiconductor Energy Laboratory Co.Ltd. · 2017