B01J 23/652
Chromium, molybdenum or tungsten
B01J23/652 (Chromium, molybdenum or tungsten) appears on 575 US grants and 594 published applications in this corpus.
Search patents in B01J- Granted patents
- 575
- Published applications
- 594
- Assignees
- 351
- Inventors
- 1,700
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 11 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 9 | 1 |
| 2002 | 14 | 9 |
| 2003 | 11 | 32 |
| 2004 | 17 | 31 |
| 2005 | 11 | 33 |
| 2006 | 17 | 23 |
| 2007 | 11 | 21 |
| 2008 | 14 | 22 |
| 2009 | 19 | 25 |
| 2010 | 21 | 30 |
| 2011 | 18 | 32 |
| 2012 | 22 | 29 |
| 2013 | 16 | 34 |
| 2014 | 30 | 34 |
| 2015 | 24 | 26 |
| 2016 | 27 | 34 |
| 2017 | 31 | 30 |
| 2018 | 16 | 17 |
| 2019 | 19 | 17 |
| 2020 | 23 | 30 |
| 2021 | 17 | 15 |
| 2022 | 17 | 17 |
| 2023 | 10 | 17 |
| 2024 | 14 | 13 |
| 2025 | 6 | 13 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Transition metal carbides for catalytic dehydrogenation of short alkanes4 Aug 2026US 12,698,246 B2Iowa State University Research Foundation, Inc.
- Hydrocarbon production system, and production method and operation method thereof19 May 2026US 12,630,488 B2Osaka Gas Co., Ltd.
- Method for producing ether17 Mar 2026US 12,577,186 B2Daicel Corporation
- Processes for producing an ether13 Jan 2026US 12,522,551 B2Dow Global Technologies LLC
- Hydrogen oxidation catalysts for hydrogen-internal combustion engine systems13 Jan 2026US 12,523,169 B2BASF Mobile Emissions Catalysts LLC
- Catalysts suitable for making light olefins by dehydrogenation that include chromium24 Sep 2026US 2026/0284641 A1Dow Global Technologies LLC
- Heterogeneous catalyst with dual catalytic centers, and preparation method and use thereof27 Aug 2026US 2026/0249279 A1China Petroleum & Chemical Corporation
- Ammonia synthesis catalyst and ammonia synthesis method16 Jul 2026US 2026/0200745 A1Eneos Corporation
- Composite catalyst for hydrogen selective catalytic reduction, method of removing nitrogen oxides using the same, and air purification device including composite catalyst9 Jul 2026US 2026/0192248 A1Samsung Electronics Co., Ltd.
- Catalyst system for a flow reactor, and method for the catalytic oxidation of ammonia2 Jul 2026US 2026/0183751 A1Heraeus Precious Metals GmbH & Co. KG
Most cited
By later US patents
- Catalysts for hydrogenation of carboxylic acid168US 6,495,730 B1Asahi Kasei Kabushiki Kaisha · 2002
- Method for manufacturing 1,1,1,2,3-pentafluoropropene 1,1,1,2,3-pentafluoropropane145US 5,679,875 ADaikin Industries, Ltd. · 1997
- Catalyst for purifying exhaust gas and the process for manufacturing thereof73US 4,274,981 AToyota Jidosha Kogyo Kabushiki Kaisha · 1981
- High surface area sol-gel route prepared hydrogenation catalysts70US 6,686,310 B1E. I. Du Pont de Nemours and Company · 2004
- Process for the conversion of relatively low molecular weight hydrocarbons, to higher molecular weight hydrocarbons, catalyst-reagents for such use in such process, and the regeneration thereof68US 4,205,194 AExxon Research & Engineering Co. · 1980