B01J 31/20
Carbonyls
B01J31/20 (Carbonyls) appears on 659 US grants and 295 published applications in this corpus.
Search patents in B01J- Granted patents
- 659
- Published applications
- 295
- Assignees
- 270
- Inventors
- 1,236
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 33 | 0 |
| 1977 | 13 | 0 |
| 1978 | 18 | 0 |
| 1979 | 24 | 0 |
| 1980 | 27 | 0 |
| 1981 | 43 | 0 |
| 1982 | 38 | 0 |
| 1983 | 22 | 0 |
| 1984 | 30 | 0 |
| 1985 | 22 | 0 |
| 1986 | 19 | 0 |
| 1987 | 14 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 14 | 0 |
| 1991 | 12 | 0 |
| 1992 | 17 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 27 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 3 |
| 2002 | 10 | 5 |
| 2003 | 6 | 12 |
| 2004 | 9 | 11 |
| 2005 | 5 | 4 |
| 2006 | 8 | 6 |
| 2007 | 3 | 8 |
| 2008 | 4 | 6 |
| 2009 | 7 | 5 |
| 2010 | 3 | 4 |
| 2011 | 2 | 4 |
| 2012 | 6 | 6 |
| 2013 | 1 | 7 |
| 2014 | 4 | 9 |
| 2015 | 9 | 14 |
| 2016 | 18 | 18 |
| 2017 | 15 | 15 |
| 2018 | 9 | 13 |
| 2019 | 16 | 22 |
| 2020 | 18 | 16 |
| 2021 | 12 | 21 |
| 2022 | 7 | 18 |
| 2023 | 6 | 20 |
| 2024 | 23 | 21 |
| 2025 | 10 | 18 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process of making organic compounds1 Sep 2026US 12,723,012 B2Givaudan SA
- Carbon dioxide reducing photocatalyst and preparation method therefor, and carbon dioxide reducing method9 Jun 2026US 12,649,149 B2Korea University Research Foundation and Business Foundation, Sejong Campus
- Formate production method, formic acid production method, and antifreezing agent production method21 Apr 2026US 12,606,513 B2Nitto Denko Corporation
- Propionic acid process7 Apr 2026US 12,595,223 B2Eastman Chemical Company
- Production of 2,2,4,4-tetramethylcyclobutane-1,3-diol from isobutanol using a homogeneous catalyst17 Mar 2026US 12,577,184 B2Eastman Chemical Company
- Process for preparing, by hydroformylation, short-chain olefins in the gas phase20 Aug 2026US 2026/0242321 A1Evonik Oxeno GmbH
- Catalyst for sp3-carbon-hydrogen-bond primary amination reaction, and method for preparing primary amine compound13 Aug 2026US 2026/0234096 A1West China Second University Hospital, Sichuan University
- Ammonia synthesis catalyst, ammonia production device, and ammonia production method6 Aug 2026US 2026/0225088 A1Idemitsu Kosan Co., Ltd.
- Hydrosilylation process catalysed by a manganese complex30 Jul 2026US 2026/0217739 A1
- Catalyst system and method for carbonylation reaction23 Jul 2026US 2026/0208174 A1Shandong Nhu Fine Chemical Science and Technology Company Ltd.
Most cited
By later US patents
- Carbonylation catalysts143US 4,792,620 ABP Chemicals Limited · 1988
- Transition metal complex catalyzed processes126US 4,769,498 AUnion Carbide Corporation · 1988
- Transition metal complex catalyzed processes112US 4,668,651 AUnion Carbide Corporation · 1987
- Process for improving productivity of a carbonylation catalyst solution by removing corrosion metals77US 5,731,252 AHoechst Celanese Corporation · 1998
- Process for the preparation of ethanol from methanol69US 5,414,161 AKorea Institute of Science and Technology · 1995