C07D 251/48
Two nitrogen atoms
C07D251/48 (Two nitrogen atoms) appears on 397 US grants and 280 published applications in this corpus.
Search patents in C07D- Granted patents
- 397
- Published applications
- 280
- Assignees
- 219
- Inventors
- 1,083
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 8 | 0 |
| 1980 | 11 | 0 |
| 1981 | 12 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 14 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 2 |
| 2002 | 10 | 11 |
| 2003 | 4 | 12 |
| 2004 | 8 | 19 |
| 2005 | 9 | 17 |
| 2006 | 10 | 13 |
| 2007 | 11 | 16 |
| 2008 | 10 | 13 |
| 2009 | 10 | 19 |
| 2010 | 6 | 11 |
| 2011 | 15 | 10 |
| 2012 | 8 | 17 |
| 2013 | 9 | 19 |
| 2014 | 10 | 13 |
| 2015 | 12 | 12 |
| 2016 | 10 | 9 |
| 2017 | 15 | 15 |
| 2018 | 7 | 1 |
| 2019 | 8 | 10 |
| 2020 | 5 | 13 |
| 2021 | 5 | 8 |
| 2022 | 8 | 7 |
| 2023 | 4 | 5 |
| 2024 | 4 | 3 |
| 2025 | 5 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Therapeutically active compounds and their methods of use7 Oct 2025US 12,433,895 B2Servier Pharmaceuticals LLC
- CFTR regulators and methods of use thereof19 Aug 2025US 12,391,654 B2The Regents of the University of California
- Use of reactive cross-linking agents for protein-containing substrates and processes for tanning and dyeing of leather3 Jun 2025US 12,319,974 B2Archroma (Switzerland) GmbH
- Insulating layer for multilayer printed circuit board, multilayer printed circuit board comprising same, and method for producing same27 May 2025US 12,313,973 B2LG Chem.Ltd.
- Cycloolefin substituted heteroaromatic compounds and their use25 Feb 2025US 12,234,211 B2Hutchison Medipharma Limited
- Cftr regulators and methods of use thereof16 Apr 2026US 2026/0103446 A1The Regents of the University of California
- Biologically active compounds and methods thereof2 Oct 2025US 2025/0304571 A1Shanghai Keen Therapeutics Co., Ltd.
- Cycloolefin substituted heteroaromatic compounds and their use10 Jul 2025US 2025/0223267 A1Hutchison Medipharma Limited
- Cftr regulators and methods of use thereof3 Apr 2025US 2025/0109113 A1The Regents of the University of California
- Erbb/btk inhibitors20 Feb 2025US 2025/0057850 A1Dizal (Jiangsu) Pharmaceutical Co., Ltd.
Most cited
By later US patents
- Compounds and compositions as protein kinase inhibitors85US 8,552,002 B2Irm LLC · 2013
- Triazine derivatives83US 6,193,960 B1Ciba Specialty Chemicals Corporation · 2001
- Piperidyl-triazine derivatives as stabilizers for synthetic polymers75US 4,108,829 AChimosa Chimica Organica S.p.A. · 1978
- Heteroaryl, heterocyclic and aryl compounds which inhibit leukocyte adhesion mediated by VLA-4.71US 7,049,306 B2Elan Pharmaceuticals, Inc. · 2006
- Inhibitors of histone deacetylase67US 6,897,220 B2MethylGene Inc. · 2005