C07D 221/14
Aza-phenalenes
Official title: Aza-phenalenes, e.g. 1,8-naphthalimide
C07D221/14 (Aza-phenalenes) appears on 230 US grants and 154 published applications in this corpus.
Search patents in C07D- Granted patents
- 230
- Published applications
- 154
- Assignees
- 156
- Inventors
- 611
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 13 | 0 |
| 1997 | 8 | 0 |
| 1998 | 3 | 0 |
| 1999 | 11 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 1 |
| 2002 | 9 | 3 |
| 2003 | 2 | 7 |
| 2004 | 3 | 5 |
| 2005 | 0 | 7 |
| 2006 | 5 | 5 |
| 2007 | 2 | 11 |
| 2008 | 3 | 10 |
| 2009 | 3 | 12 |
| 2010 | 4 | 6 |
| 2011 | 2 | 8 |
| 2012 | 5 | 4 |
| 2013 | 8 | 3 |
| 2014 | 7 | 8 |
| 2015 | 4 | 5 |
| 2016 | 9 | 10 |
| 2017 | 4 | 6 |
| 2018 | 2 | 3 |
| 2019 | 1 | 2 |
| 2020 | 4 | 9 |
| 2021 | 6 | 8 |
| 2022 | 2 | 6 |
| 2023 | 5 | 3 |
| 2024 | 5 | 5 |
| 2025 | 0 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Naphthalimide sulfonate derivative, and photoacid generator and photoresist composition which comprise same12 May 2026US 12,624,007 B2Samyang Corporation
- Naphthalimide sulfonate derivative, and photoacid generator and photoresist composition each comprising same12 May 2026US 12,625,427 B2Samyang Corporation
- 6-azido-1.3 benzo[de]isoquinoline compounds photo-crosslinked by visible light and uses thereof10 Feb 2026US 12,545,644 B2Seoul National University R&Db Foundation
- N and P active materials for organic photoelectric conversion layers in organic photodiodes23 Apr 2024US 11,968,895 B2Sony Corporation
- Colored functionalized [2,2] paracyclophane and colored chemical film9 Apr 2024US 11,952,498 B2National Taiwan University
- Photoactive compounds1 Oct 2026US 2026/0299409 A1Merck Patent GmbH
- Anticancer drug conjugates4 Jun 2026US 2026/0151413 A1Ariel Scientific Innovations Ltd.
- Process for pd(ii)-catalyzed site-selective beta- and gamma-c(sp3)-h arylation of primary aldehydes controlled by transient directing groups1 Jan 2026US 2026/0001830 A1The Scripps Research Institute
- Compound, polymeric compound, resist composition, and method of forming resist pattern4 Sep 2025US 2025/0278022 A1Samsung Electronics Co., Ltd.
- Polycyclic poly(adp-ribose) polymerase selective inhibitor28 Aug 2025US 2025/0270224 A1Xuanzhu Biopharmaceutical Co., Ltd.
Most cited
By later US patents
- Amyloid binding nitrogen-linked compounds for the antemortem diagnosis of alzheimer's disease, in vivo imaging and prevention of amyloid deposits87US 6,417,178 B1University of Pittsburgh · 2002
- Di-n-heterocyclic compounds, methods, and compositions for inhibiting parp activity78US 6,121,278 AGuilford Pharmaceuticals Inc. · 2000
- PARP inhibitors, pharmaceutical compositions comprising same, and methods of using same77US 6,635,642 B1Guilford Pharmaceuticals Inc. · 2003
- Dye-forming compositions76US 4,425,424 AEastman Kodak Company · 1984
- Alkyl, alkenyl and alkynyl Chrysamine G derivatives for the antemortem diagnosis of Alzheimer's disease and in vivo imaging and prevention of amyloid deposition71US 6,168,776 AUniversity of Pittsburgh · 2001