C07C 309/35
Naphthalene sulfonic acids
C07C309/35 (Naphthalene sulfonic acids) appears on 61 US grants and 105 published applications in this corpus.
Search patents in C07C- Granted patents
- 61
- Published applications
- 105
- Assignees
- 65
- Inventors
- 335
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 4 |
| 2015 | 4 | 2 |
| 2016 | 5 | 9 |
| 2017 | 5 | 6 |
| 2018 | 4 | 7 |
| 2019 | 4 | 9 |
| 2020 | 3 | 8 |
| 2021 | 6 | 4 |
| 2022 | 5 | 9 |
| 2023 | 3 | 9 |
| 2024 | 6 | 8 |
| 2025 | 4 | 15 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Amorphous substances, crystals, pharmaceutical compositions, preparation methods and uses of thiohydantoin compound or pharmaceutically acceptable salt thereof6 Oct 2026US 12,753,173 B2Suzhou Kintor Pharmaceuticals, Inc.
- Integrin inhibitor and uses thereof26 May 2026US 12,637,462 B2Pliant Therapeutics, Inc.
- Salts and crystal forms of omecamtiv mecarbil28 Apr 2026US 12,612,366 B2Amgen Inc.
- Salts/cocrystals of (R)-N-(4-chlorophenyl-2-((1S,4S)-4-(6-fluoroquinolin-4-yl)cyclohexyl)propanamide20 Jan 2026US 12,527,783 B2Bristol-Myers Squibb Company
- Crystalline salt of eribulin2 Dec 2025US 12,486,283 B2Yonsung Fine Chemical Co., Ltd.
- Solid form of pyrrolidone derivative as glucokinase activator24 Sep 2026US 2026/0285835 A1Hua Medicine (Shanghai) Ltd.
- Crystalline forms of tenofovir alafenamide6 Aug 2026US 2026/0226087 A1Gilead Sciences, Inc.
- Solid forms of a cdk2 inhibitor30 Jul 2026US 2026/0217718 A1Blueprint Medicines Corporation
- Crystalline forms of a macrocyclic compound11 Jun 2026US 2026/0159526 A1Turning Point Therapeutics, Inc.
- Pi3k-alpha inhibitors and methods of making and using the same7 May 2026US 2026/0125374 A1Relay Therapeutics, Inc.
Most cited
By later US patents
- Photographic element and process comprising a compound which comprises two timing groups in sequence90US 4,861,701 AEastman Kodak Company · 1989
- Branched alkyl-aromatic sulfonic acid dispersants for solublizing asphaltenes in petroleum oils33US 6,048,904 AExxon Research & Engineering Co. · 2000
- Phenothiazine diaminium salts and their use31US 9,283,230 B2WisTa Laboratories Ltd. · 2016
- Actinic ray-sensitive or radiation-sensitive resin composition and method of forming pattern with the composition18US 8,900,791 B2FUJIFILM Corporation · 2014
- Salts and crystal forms of omecamtiv mecarbil16US 11,465,969 B2Amgen Inc. · 2022