C07C 45/74
Combined with dehydration
Official title: combined with dehydration
C07C45/74 (Combined with dehydration) appears on 664 US grants and 240 published applications in this corpus.
Search patents in C07C- Granted patents
- 664
- Published applications
- 240
- Assignees
- 281
- Inventors
- 1,473
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 24 | 0 |
| 1978 | 19 | 0 |
| 1979 | 11 | 0 |
| 1980 | 24 | 0 |
| 1981 | 16 | 0 |
| 1982 | 8 | 0 |
| 1983 | 13 | 0 |
| 1984 | 28 | 0 |
| 1985 | 20 | 0 |
| 1986 | 14 | 0 |
| 1987 | 19 | 0 |
| 1988 | 12 | 0 |
| 1989 | 13 | 0 |
| 1990 | 18 | 0 |
| 1991 | 16 | 0 |
| 1992 | 21 | 0 |
| 1993 | 24 | 0 |
| 1994 | 13 | 0 |
| 1995 | 11 | 0 |
| 1996 | 16 | 0 |
| 1997 | 28 | 0 |
| 1998 | 16 | 0 |
| 1999 | 16 | 0 |
| 2000 | 20 | 0 |
| 2001 | 20 | 4 |
| 2002 | 11 | 10 |
| 2003 | 17 | 20 |
| 2004 | 7 | 17 |
| 2005 | 11 | 10 |
| 2006 | 14 | 10 |
| 2007 | 8 | 12 |
| 2008 | 8 | 10 |
| 2009 | 9 | 15 |
| 2010 | 11 | 14 |
| 2011 | 6 | 9 |
| 2012 | 6 | 7 |
| 2013 | 11 | 10 |
| 2014 | 11 | 10 |
| 2015 | 12 | 9 |
| 2016 | 5 | 13 |
| 2017 | 14 | 9 |
| 2018 | 6 | 7 |
| 2019 | 8 | 9 |
| 2020 | 8 | 3 |
| 2021 | 4 | 3 |
| 2022 | 2 | 7 |
| 2023 | 3 | 8 |
| 2024 | 1 | 5 |
| 2025 | 6 | 3 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- α,β-unsaturated aldehyde production method9 Jun 2026US 12,649,708 B2Kao Corporation
- Process for the preparation of 2-isopentyl-2-isopropyl-1,3-dimethoxypropane28 Apr 2026US 12,612,349 B2Sabic Global Technologies B.V.
- Method of producing bio-derived branched alkyl glyceryl ether, and bio-derived branched alkyl glyceryl ether produced by said method20 Jan 2026US 12,528,755 B2Adeka Corporation
- Molded catalyst, production method for same, and method for producing cyclic ketone using same25 Nov 2025US 12,478,953 B2Korea Kumho Petrochemical Co., Ltd.
- Rationally designed lawsone derivatives as antimicrobials against multidrug-resistant Staphylococcus aureus7 Oct 2025US 12,433,853 B2Kent State University
- Liquid phase process for preparing isophorone24 Sep 2026US 2026/0285795 A1Evonik Operations GmbH
- Method and apparatus for producing aldehyde13 Aug 2026US 2026/0234092 A1Johnson Matthey Davy Technologies Limited
- Process for the synthesis of isophorone in the liquid phase with recycling of the alkaline catalyst by electrodialysis30 Jul 2026US 2026/0217636 A1Arkema France
- Process for the synthesis of isophorone in the liquid phase with recycling of by-products23 Jul 2026US 2026/0209153 A1Arkema France
- Process for preparing compounds derived from 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one23 Jul 2026US 2026/0209154 A1L'oreal
Most cited
By later US patents
- Retroviral protease inhibiting compounds159US 5,142,056 AAbbott Laboratories · 1992
- Retroviral protease inhibiting compounds109US 5,354,866 AAbbott Laboratories · 1994
- Pharmacologically active compounds, methods for the preparation thereof and compositions containing the same100US 4,963,590 AOrion-yhtyma Oy · 1990
- Retroviral protease inhibiting compounds94US 5,541,206 AAbbott Laboratories · 1996
- Fungicidal compounds82US 4,243,405 AImperial Chemical Industries PLC · 1981