C07C 301/02
Esters of sulfurous acid: having sulfite groups bound to carbon atoms of
Official title: having sulfite groups bound to carbon atoms of six-membered aromatic rings
C07C301/02 (Esters of sulfurous acid: having sulfite groups bound to carbon atoms of) appears on 5 US grants and 8 published applications in this corpus.
Search patents in C07C- Granted patents
- 5
- Published applications
- 8
- Assignees
- 5
- Inventors
- 35
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 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 | 0 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ophthalmic devices2 Sep 2025US 12,405,488 B2Bausch + Lomb Ireland Limited
- Biomolecule-polymer-pharmaceutical agent conjugates for delivering the pharmaceutical agent10 Sep 2024US 12,084,415 B2Massachusetts Institute of Technology
- Pentafluorophenyloxy compound, and nonaqueous electrolyte solution and lithium secondary battery using same14 Sep 2010US 7,794,876 B2Ube Industries, Ltd.
- Phenol phosphorus compounds as polyolefin stabilizers20 Jan 1981US 4,246,170 ACiba-Geigy Corporation
- Novel phenol stabilizers10 Apr 1979US 4,148,820 ACiba-Geigy Corporation
- Chiral isomeric sulfite compound and application thereof2 Jul 2026US 2026/0184675 A1Chengdu Hanova BioSciences Co., Ltd
- Ophthalmic devices25 Sep 2025US 2025/0298263 A1Bausch + Lomb Ireland Limited
- Biomolecule-polymer-pharmaceutical agent conjugates for delivering the pharmaceutical agent31 Jul 2025US 2025/0243159 A9Massachusetts Institute of Technology
- Biomolecule-polymer-pharmaceutical agent conjugates for delivering the pharmaceutical agent21 Nov 2024US 2024/0383847 A1Massachusetts Institute of Technology
- Biomolecule-polymer-pharmaceutical agent conjugates for delivering the pharmaceutical agent22 Jun 2023US 2023/0192610 A1Massachusetts Institute of Technology
Most cited
By later US patents
- Phenol phosphorus compounds as polyolefin stabilizers6US 4,246,170 ACiba-Geigy Corporation · 1981
- Biomolecule-polymer-pharmaceutical agent conjugates for delivering the pharmaceutical agent2US 12,084,415 B2Massachusetts Institute of Technology · 2024
- Pentafluorophenyloxy compound, and nonaqueous electrolyte solution and lithium secondary battery using same2US 7,794,876 B2Ube Industries, Ltd. · 2010
- Novel phenol stabilizers1US 4,148,820 ACiba-Geigy Corporation · 1979