C07C 309/31
By alkyl groups containing at least three carbon atoms
Official title: by alkyl groups containing at least three carbon atoms
C07C309/31 (By alkyl groups containing at least three carbon atoms) appears on 58 US grants and 58 published applications in this corpus.
Search patents in C07C- Granted patents
- 58
- Published applications
- 58
- Assignees
- 41
- Inventors
- 171
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 4 |
| 2006 | 1 | 3 |
| 2007 | 0 | 2 |
| 2008 | 3 | 2 |
| 2009 | 4 | 4 |
| 2010 | 2 | 3 |
| 2011 | 3 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 3 | 4 |
| 2016 | 1 | 2 |
| 2017 | 0 | 1 |
| 2018 | 4 | 9 |
| 2019 | 5 | 2 |
| 2020 | 2 | 1 |
| 2021 | 2 | 3 |
| 2022 | 1 | 3 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 6 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnesium sulfonate detergent having improved compatibility with friction modifiers6 Oct 2026US 12,753,362 B2Afton Chemical Corporation
- 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
- Divalent phosphazenium salt and polyalkylene oxide composition containing the same, as well as polyurethane-forming composition containing the polyalkylene oxide composition8 Oct 2024US 12,110,304 B2Tosoh Corporation
- Amphiphilic reaction products from vinylidene olefins and methods for production thereof3 Sep 2024US 12,077,482 B2ExxonMobil Chemical Patents Inc.
- Organic sulfonic acid salts of amino acid esters and process for their preparation10 Oct 2023US 11,780,802 B2BASF SE
- Onium salt, chemically amplified resist composition, and pattern forming process29 Jan 2026US 2026/0028313 A1Shin-Etsu Chemical Co., Ltd.
- Polyisobutyl benzene sulfonate for lubricants and fuels27 Nov 2025US 2025/0361336 A1BASF SE
- Gabaa receptor modulator salts, particles, and uses thereof4 Sep 2025US 2025/0275966 A1Engrail Therapeutics, Inc.
- Magnesium sulfonate detergent having improved compatibility with friction modifiers17 Jul 2025US 2025/0230375 A1Afton Chemical Corporation
- Oligobutyl benzene sulfonate for lubricants and fuels10 Jul 2025US 2025/0223258 A1BASF SE
Most cited
By later US patents
- Detergent alkylation process using a fluorided silica-alumina58US 5,196,574 AUop LLC · 1993
- Sodium sulfonate blends as emulsifiers for petroleum oils45US 6,225,267 B1CK Witco Corporation · 2001
- Alkylation of aromatics using a fluorided silica-alumina catalyst33US 5,344,997 AUop LLC · 1994
- Branched alkyl-aromatic sulfonic acid dispersants for solublizing asphaltenes in petroleum oils33US 6,048,904 AExxon Research & Engineering Co. · 2000
- Quaternary ammonium antistatic polymer compositions21US 5,187,214 APPG Industries, Inc. · 1993