C07D 231/44
Oxygen and nitrogen or sulfur and nitrogen atoms
C07D231/44 (Oxygen and nitrogen or sulfur and nitrogen atoms) appears on 435 US grants and 263 published applications in this corpus.
Search patents in C07D- Granted patents
- 435
- Published applications
- 263
- Assignees
- 175
- Inventors
- 992
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 13 | 0 |
| 1978 | 11 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 6 | 0 |
| 1983 | 11 | 0 |
| 1984 | 2 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 12 | 0 |
| 1990 | 19 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 13 | 0 |
| 2000 | 14 | 0 |
| 2001 | 7 | 2 |
| 2002 | 15 | 8 |
| 2003 | 12 | 8 |
| 2004 | 2 | 11 |
| 2005 | 4 | 8 |
| 2006 | 7 | 8 |
| 2007 | 3 | 16 |
| 2008 | 9 | 14 |
| 2009 | 12 | 13 |
| 2010 | 18 | 18 |
| 2011 | 13 | 10 |
| 2012 | 9 | 13 |
| 2013 | 10 | 10 |
| 2014 | 11 | 15 |
| 2015 | 9 | 7 |
| 2016 | 5 | 14 |
| 2017 | 9 | 12 |
| 2018 | 8 | 15 |
| 2019 | 9 | 16 |
| 2020 | 11 | 8 |
| 2021 | 10 | 14 |
| 2022 | 11 | 3 |
| 2023 | 7 | 8 |
| 2024 | 2 | 4 |
| 2025 | 5 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and materials for inhibiting NF-kB activity21 Apr 2026US 12,606,528 B2University of Pittsburgh—Of the Commonwealth System of Higher Education
- Pyrazolone formyl peptide 2 receptor agonists17 Mar 2026US 12,577,206 B2Bristol-Myers Squibb Company
- Actionable widget cards28 Oct 2025US 12,454,513 B2Wic.com Ltd.
- ACSS2 inhibitors and methods of use thereof14 Oct 2025US 12,441,689 B2EpiVario, Inc.
- Process for the preparation of key intermediates for the synthesis of Eltrombopag or salt thereof7 Oct 2025US 12,435,042 B2F.I.S. - Fabbrica Italiana Sintetici S.p. A.
- Masp-2 inhibitors and methods of use9 Jul 2026US 2026/0193179 A9Omeros Corporation
- Acss2 inhibitors and methods of use thereof26 Mar 2026US 2026/0085048 A1EpiVario, Inc.
- Actionable widget cards29 Jan 2026US 2026/0028318 A1Wix com Ltd
- Masp-2 inhibitors and methods of use11 Dec 2025US 2025/0376443 A1Omeros Corporation
- Masp-2 inhibitors and methods of use4 Dec 2025US 2025/0368604 A1Omeros Corporation
Most cited
By later US patents
- Derivatives of N-phenylpyrazoles191US 5,232,940 A1993
- 1-(Substituted phenyl) aminoantipyrin compounds152US 4,394,512 ABoehringer Mannheim GmbH · 1983
- Aminopyrazolinones, reagent containing them and the use thereof in the enzymatic determinaton of hydrogen peroxide150US 4,737,458 ABoehringer Mannheim GmbH · 1988
- N-(1-arylpyrazol-4L)sulfonamides and their use as parasiticides81US 7,803,832 B2Pfizer Inc. · 2010
- UV absorbers65US 5,489,503 ACiba-Geigy Corporation · 1996