C07C 305/02
Esters of sulfuric acids: having oxygen atoms of sulfate groups bound to
Official title: having oxygen atoms of sulfate groups bound to acyclic carbon atoms of a carbon skeleton
C07C305/02 (Esters of sulfuric acids: having oxygen atoms of sulfate groups bound to) appears on 246 US grants and 224 published applications in this corpus.
Search patents in C07C- Granted patents
- 246
- Published applications
- 224
- Assignees
- 150
- Inventors
- 668
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 9 | 2 |
| 2002 | 6 | 5 |
| 2003 | 2 | 5 |
| 2004 | 5 | 15 |
| 2005 | 4 | 8 |
| 2006 | 3 | 8 |
| 2007 | 3 | 6 |
| 2008 | 5 | 8 |
| 2009 | 4 | 7 |
| 2010 | 7 | 12 |
| 2011 | 10 | 13 |
| 2012 | 8 | 8 |
| 2013 | 11 | 3 |
| 2014 | 1 | 12 |
| 2015 | 3 | 11 |
| 2016 | 7 | 10 |
| 2017 | 12 | 8 |
| 2018 | 6 | 6 |
| 2019 | 7 | 13 |
| 2020 | 6 | 10 |
| 2021 | 11 | 12 |
| 2022 | 5 | 4 |
| 2023 | 6 | 10 |
| 2024 | 6 | 10 |
| 2025 | 4 | 14 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hair restructuring association comprising a quaternary ammonium salt and a sulpho-derivative of vegetable fatty acids9 Jun 2026US 12,648,900 B2Greengredients S.r.l.
- Artificially synthesized sphingosine derivative lipoid monomer and use of same for delivering nucleic acid19 May 2026US 12,629,421 B2Beijing Baishihekang Pharmaceutical Technology (Bsjpharma) Co., Ltd
- Ionic compound, absorbent and absorption device28 Apr 2026US 12,612,404 B2Industrial Technology Research Institute
- Cabozantinib compositions and methods of use17 Feb 2026US 12,552,749 B2Handa Oncology, LLC
- Cabozantinib compositions and methods of use13 Jan 2026US 12,522,567 B2Handa Oncology, LLC
- Artificially synthesized sphingosine derivative lipoid monomer and use of same for delivering nucleic acid6 Aug 2026US 2026/0224704 A1Beijing Baishihekang Pharmaceutical Technology (Bsjpharma) Co., Ltd
- Cabozantinib compositions and methods of use21 May 2026US 2026/0138953 A1Handa Oncology, LLC
- Alkyl ether sulfate surfactants and associated methods of manufacture26 Mar 2026US 2026/0085037 A1
- Application of compound or traditional chinese medicine extract in preparation of nucleic acid delivery agent, and related products1 Jan 2026US 2026/0000768 A1Beijing Baishihekang Pharmaceutical Technology (Bsjpharma) Co., Ltd
- Sulfonated and sulfated aryl-alkyl compounds useful as surfactants25 Dec 2025US 2025/0388535 A1Specialty Operations France
Most cited
By later US patents
- Mid-chain branched surfactants193US 6,020,303 AThe Procter & Gamble Company · 2000
- Mid-chain branched alkyl sulfate surfactants175US 6,060,443 AThe Procter & Gamble Company · 2000
- Detergent compositions containing selected mid-chain branched surfactants167US 6,326,348 B1The Procter & Gamble Company · 2001
- Mid-Chain branched Alkoxylated Sulfate Surfactants147US 6,008,181 AThe Procter & Gamble Company · 1999
- Highly branched primary alcohol compositions, and biodegradable detergents made therefrom92US 5,849,960 AShell Oil Company · 1998