C07D 321/00
Heterocyclic compounds containing rings having two oxygen atoms as the only ring
Official title: Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups C07D317/00 - C07D319/00
C07D321/00 (Heterocyclic compounds containing rings having two oxygen atoms as the only ring) appears on 592 US grants and 368 published applications in this corpus.
Search patents in C07D- Granted patents
- 592
- Published applications
- 368
- Assignees
- 277
- Inventors
- 1,366
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 9 | 0 |
| 1978 | 9 | 0 |
| 1979 | 8 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 11 | 0 |
| 1989 | 11 | 0 |
| 1990 | 15 | 0 |
| 1991 | 18 | 0 |
| 1992 | 14 | 0 |
| 1993 | 18 | 0 |
| 1994 | 11 | 0 |
| 1995 | 15 | 0 |
| 1996 | 13 | 0 |
| 1997 | 23 | 0 |
| 1998 | 24 | 0 |
| 1999 | 25 | 0 |
| 2000 | 18 | 0 |
| 2001 | 15 | 9 |
| 2002 | 17 | 8 |
| 2003 | 11 | 13 |
| 2004 | 7 | 18 |
| 2005 | 8 | 17 |
| 2006 | 6 | 12 |
| 2007 | 6 | 13 |
| 2008 | 11 | 21 |
| 2009 | 9 | 16 |
| 2010 | 10 | 11 |
| 2011 | 5 | 3 |
| 2012 | 8 | 13 |
| 2013 | 8 | 13 |
| 2014 | 16 | 18 |
| 2015 | 19 | 19 |
| 2016 | 19 | 20 |
| 2017 | 14 | 16 |
| 2018 | 12 | 15 |
| 2019 | 10 | 15 |
| 2020 | 14 | 16 |
| 2021 | 8 | 20 |
| 2022 | 11 | 19 |
| 2023 | 16 | 16 |
| 2024 | 14 | 12 |
| 2025 | 8 | 8 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Chemiluminescence probes for tuberculosis29 Sep 2026US 12,747,222 B2Ramot at Tel-Aviv University Ltd.
- Salt, acid generator, resist composition and method for producing resist pattern25 Aug 2026US 12,715,843 B2Sumitomo Chemical Company, Limited
- Salt, acid generator, resist composition and method for producing resist pattern12 May 2026US 12,624,016 B2Sumitomo Chemical Company, Limited
- Salt, acid generator, resist composition and method for producing resist pattern3 Mar 2026US 12,566,375 B2Sumitomo Chemical Company, Limited
- Salt, acid generator, resist composition and method for producing resist pattern10 Feb 2026US 12,547,073 B2Sumitomo Chemical Company, Limited
- Polymer compositions with thermally contractile molecules10 Sep 2026US 2026/0265448 A1National Technology & Engineering Solutions of Sandia, LLC
- Highly atom economical process for synthesis of novel co-initiator for photo-induced radical polymerisation20 Aug 2026US 2026/0242348 A1SHIV NADAR (Institution of Eminence Deemed To Be University)
- Radiation-sensitive composition, method for forming pattern, and onium salt compound30 Jul 2026US 2026/0219573 A1Jsr Corporation
- Spiromacrocyclic orexin 2 receptor agonists28 May 2026US 2026/0144795 A1H. Lundbeck A.S.
- Functional oligomers and functional polymers including hydroxylated polymers and conjugates thereof and uses thereof14 May 2026US 2026/0132237 A1Massachusetts Institute of Technology
Most cited
By later US patents
- 1,3-propane diol esters and ethers and methods for their use in drug delivery162US 6,555,700 B1Scotia Holdings PLC · 2003
- Glutaramide diuretic agents156US 5,030,654 APfizer Inc. · 1991
- Condensed heterocyclic compounds154US 5,037,825 AHoffmann-La Roche Inc. · 1991
- Fatty acid esters as bioactive compounds147US 6,245,811 B1Scotia Holdings PLC · 2001
- Methods of using chemiluminescent 1,2-dioxetanes78US 4,931,223 ATropix, Inc. · 1990