C07C 45/68
By increase in the number of carbon atoms
Official title: by increase in the number of carbon atoms
C07C45/68 (By increase in the number of carbon atoms) appears on 3,219 US grants and 1,145 published applications in this corpus.
Search patents in C07C- Granted patents
- 3,219
- Published applications
- 1,145
- Assignees
- 985
- Inventors
- 5,706
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 128 | 0 |
| 1977 | 109 | 0 |
| 1978 | 93 | 0 |
| 1979 | 85 | 0 |
| 1980 | 109 | 0 |
| 1981 | 129 | 0 |
| 1982 | 100 | 0 |
| 1983 | 93 | 0 |
| 1984 | 104 | 0 |
| 1985 | 101 | 0 |
| 1986 | 74 | 0 |
| 1987 | 89 | 0 |
| 1988 | 59 | 0 |
| 1989 | 83 | 0 |
| 1990 | 80 | 0 |
| 1991 | 84 | 0 |
| 1992 | 88 | 0 |
| 1993 | 82 | 0 |
| 1994 | 58 | 0 |
| 1995 | 54 | 0 |
| 1996 | 89 | 0 |
| 1997 | 84 | 0 |
| 1998 | 83 | 0 |
| 1999 | 82 | 0 |
| 2000 | 57 | 0 |
| 2001 | 87 | 15 |
| 2002 | 59 | 61 |
| 2003 | 59 | 73 |
| 2004 | 50 | 85 |
| 2005 | 40 | 66 |
| 2006 | 58 | 52 |
| 2007 | 44 | 57 |
| 2008 | 39 | 50 |
| 2009 | 53 | 57 |
| 2010 | 35 | 55 |
| 2011 | 32 | 44 |
| 2012 | 30 | 44 |
| 2013 | 45 | 40 |
| 2014 | 44 | 42 |
| 2015 | 55 | 36 |
| 2016 | 29 | 59 |
| 2017 | 55 | 52 |
| 2018 | 36 | 31 |
| 2019 | 37 | 46 |
| 2020 | 37 | 25 |
| 2021 | 22 | 38 |
| 2022 | 21 | 26 |
| 2023 | 15 | 24 |
| 2024 | 17 | 28 |
| 2025 | 16 | 17 |
| 2026 | 7 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for synthesizing xanthohumol11 Aug 2026US 12,703,673 B2Pro Xn Sp. Z O.O.
- α,β-unsaturated aldehyde production method9 Jun 2026US 12,649,708 B2Kao Corporation
- Curcusone diterpenoids and uses thereof5 May 2026US 12,617,745 B2Purdue Research Foundation
- Process for the preparation of 2-isopentyl-2-isopropyl-1,3-dimethoxypropane28 Apr 2026US 12,612,349 B2Sabic Global Technologies B.V.
- Process for preparing perfuming intermediate28 Apr 2026US 12,612,352 B2Firmenich SA
- Biphenyl compound, pharmaceutical composition, method for preparing same, and use thereof1 Oct 2026US 2026/0297017 A1Longivitron (Suzhou) Biotechnology Co., Ltd
- Liquid phase process for preparing isophorone24 Sep 2026US 2026/0285795 A1Evonik Operations GmbH
- Methods and intermediates for preparing compounds10 Sep 2026US 2026/0265170 A1ViiV HEALTHCARE UK (NO. 5) LIMITED
- Method for producing biaryl compound3 Sep 2026US 2026/0257977 A1FUJIFILM Corporation
- Intermolecular cyclopropanation of unsaturated hydrocarbons20 Aug 2026US 2026/0242327 A1The Penn State Research Foundation
Most cited
By later US patents
- Methods for identifying and optimizing materials in microfluidic systems177US 6,737,026 B1Symyx Technologies, Inc. · 2004
- Chemical processing microsystems comprising parallel flow microreactors and methods for using same166US 6,749,814 B1Symyx Technologies, Inc. · 2004
- Retroviral protease inhibiting compounds159US 5,142,056 AAbbott Laboratories · 1992
- Immunotherapeutic agents153US 5,929,117 ACelgene Corporation · 1999
- Compounds and methods for kinase modulation, and indications therefor151US 7,863,288 B2Plexxikon Inc. · 2011