C07C 309/45
Containing nitrogen atoms, not being part of nitro or nitroso groups, bound
Official title: containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
C07C309/45 (Containing nitrogen atoms, not being part of nitro or nitroso groups, bound) appears on 307 US grants and 183 published applications in this corpus.
Search patents in C07C- Granted patents
- 307
- Published applications
- 183
- Assignees
- 179
- Inventors
- 681
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 10 | 0 |
| 1979 | 8 | 0 |
| 1980 | 12 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 13 | 0 |
| 1998 | 12 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 0 |
| 2002 | 6 | 6 |
| 2003 | 2 | 4 |
| 2004 | 3 | 6 |
| 2005 | 2 | 9 |
| 2006 | 5 | 5 |
| 2007 | 4 | 11 |
| 2008 | 8 | 13 |
| 2009 | 7 | 5 |
| 2010 | 4 | 10 |
| 2011 | 5 | 9 |
| 2012 | 5 | 3 |
| 2013 | 1 | 15 |
| 2014 | 7 | 6 |
| 2015 | 7 | 3 |
| 2016 | 7 | 8 |
| 2017 | 6 | 6 |
| 2018 | 3 | 10 |
| 2019 | 9 | 11 |
| 2020 | 9 | 8 |
| 2021 | 6 | 6 |
| 2022 | 5 | 5 |
| 2023 | 7 | 8 |
| 2024 | 16 | 4 |
| 2025 | 5 | 10 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 309/51At least one of the nitrogen atoms being part of any of106
- C07C 309/46Having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic98
- C07C 309/47Having at least one of the sulfo groups bound to a carbon59
- C07C 309/49The carbon skeleton being further substituted by singly-bound oxygen atoms48
- C07C 309/52The carbon skeleton being further substituted by doubly-bound oxygen atoms16
- C07C 309/48The carbon skeleton being further substituted by halogen atoms4
Recent patents
- Binding domain mapping and compounds, compositions, complexes, methods, and kits related thereto17 Jun 2025US 12,331,096 B2George Mason Research Foundation, Inc.
- 8-((3-formyl-4-hydroxyphenyl)diazenyl)naphthalene-1,3-disulfonic acid as an antioxidant compound1 Apr 2025US 12,264,127 B1King Faisal University
- Acid as an antioxidant compound1 Apr 2025US 12,264,128 B1King Faisal University
- Photoacid generator for chemically amplified photoresists4 Mar 2025US 12,242,190 B2International Business Machines Corporation
- Disulfonate stilbenes for use in the treatment of proliferative diseases25 Feb 2025US 12,233,041 B2Centre National De La Recherche Scientifique
- Iron replacement treatments14 May 2026US 2026/0132160 A1The General Hospital Corporation
- Radiation-sensitive composition, method for forming pattern and onium salt compound5 Mar 2026US 2026/0063994 A1Jsr Corporation
- Binding Domain Mapping and Compounds, Compositions, Complexes, Methods, and Kits Related Thereto30 Oct 2025US 2025/0333472 A1George Mason Research Foundation, Inc.
- Novel amyloid-beta aggregate degrader and brain-targeting drug delivery system using same25 Sep 2025US 2025/0295612 A1University-Industry Cooperation Group of Kyung Hee University
- Synthesis process for high purity isosulfan blue using flash chromatography in commercial plant scale28 Aug 2025US 2025/0270168 A1Rising Pharma Holdings, Inc.
Most cited
By later US patents
- Dichroic light polarizers162US 6,049,428 AOptiva, Inc. · 2000
- 8-(anilino)-1-naphthalenesulfonate analogs148US 6,218,571 B1LifeScan, Inc. · 2001
- Process for sizing paper with anionic hydrophobic sizing agents and cationic retention aids87US 4,956,049 ACiba-Geigy Corporation · 1990
- Colorant stabilizers87US 5,885,337 A1999
- Photo-stable cosmetic and pharmaceutical formulations containing UV-filters48US 5,945,091 ABASF SE · 1999