C07D 251/30
Only oxygen atoms
C07D251/30 (Only oxygen atoms) appears on 630 US grants and 304 published applications in this corpus.
Search patents in C07D- Granted patents
- 630
- Published applications
- 304
- Assignees
- 264
- Inventors
- 1,431
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 15 | 0 |
| 1978 | 25 | 0 |
| 1979 | 15 | 0 |
| 1980 | 21 | 0 |
| 1981 | 26 | 0 |
| 1982 | 12 | 0 |
| 1983 | 20 | 0 |
| 1984 | 13 | 0 |
| 1985 | 10 | 0 |
| 1986 | 14 | 0 |
| 1987 | 10 | 0 |
| 1988 | 4 | 0 |
| 1989 | 17 | 0 |
| 1990 | 14 | 0 |
| 1991 | 17 | 0 |
| 1992 | 23 | 0 |
| 1993 | 29 | 0 |
| 1994 | 13 | 0 |
| 1995 | 15 | 0 |
| 1996 | 9 | 0 |
| 1997 | 14 | 0 |
| 1998 | 11 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 3 |
| 2002 | 6 | 4 |
| 2003 | 8 | 14 |
| 2004 | 8 | 10 |
| 2005 | 5 | 6 |
| 2006 | 4 | 9 |
| 2007 | 11 | 12 |
| 2008 | 8 | 7 |
| 2009 | 3 | 4 |
| 2010 | 3 | 8 |
| 2011 | 6 | 9 |
| 2012 | 4 | 10 |
| 2013 | 10 | 11 |
| 2014 | 12 | 14 |
| 2015 | 13 | 17 |
| 2016 | 16 | 16 |
| 2017 | 11 | 16 |
| 2018 | 15 | 15 |
| 2019 | 13 | 13 |
| 2020 | 10 | 15 |
| 2021 | 10 | 17 |
| 2022 | 7 | 9 |
| 2023 | 8 | 30 |
| 2024 | 7 | 9 |
| 2025 | 18 | 16 |
| 2026 | 14 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compound, method for preparing same, and single molecule, oligomer and polymer derived from same29 Sep 2026US 12,747,216 B2LG Chem.Ltd.
- Ionizable lipid compounds and lipid nanoparticle compositions16 Jun 2026US 12,655,114 B2SunVax mRNA Therapeutics Inc.
- Aziridinyl functional compound26 May 2026US 12,637,423 B2Covestro (Netherlands) B.V.
- Method for producing thiol compound12 May 2026US 12,624,001 B2Resonac Corporation
- Additive mixtures for rheology modification of polymers7 Apr 2026US 12,595,343 B2BASF SE
- Nonaqueous electrolyte solution, nonaqueous electrolyte solution battery, and compound27 Aug 2026US 2026/0253953 A1Central Glass Company, Limited
- Polythiol compositions and their process of preparation13 Aug 2026US 2026/0234103 A1Arkema France
- Polyisocyanate composition13 Aug 2026US 2026/0234113 A1Wanhua Chemical Group Co., Ltd.
- Nonaqueous electrolyte solution, nonaqueous electrolyte solution battery, and compound13 Aug 2026US 2026/0237741 A1Central Glass Company, Limited
- New compounds for treating streptococcus infections6 Aug 2026US 2026/0225998 A1AB2 Therapeutics, S. L.
Most cited
By later US patents
- Process for the preparation of polyisocyanates containing isocyanurate groups and the use thereof112US 4,324,879 ABayer Aktiengesellschaft · 1982
- Isocyanate trimers containing iminooxadiazine dione groups, their preparation and use99US 5,914,383 ABayer Aktiengesellschaft · 1999
- Isocyanato-isocyanurates, and process for the production thereof68US 4,419,513 ABayer Aktiengesellschaft · 1983
- Process for the preparation of polyisocyanates containing isocyanurate groups62US 4,288,586 ABayer Aktiengesellschaft · 1981
- Polyisocyanates containing allophanate and isocyanurate groups, a process for their production and their use in two-component coating compositions58US 5,235,018 AMiles Inc. · 1993