B01J 23/862
Iron and chromium
Official title: {Iron and chromium}
B01J23/862 (Iron and chromium) appears on 143 US grants and 87 published applications in this corpus.
Search patents in B01J- Granted patents
- 143
- Published applications
- 87
- Assignees
- 106
- Inventors
- 498
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 7 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 4 |
| 2009 | 1 | 1 |
| 2010 | 2 | 7 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 2 | 3 |
| 2016 | 0 | 1 |
| 2017 | 5 | 6 |
| 2018 | 4 | 5 |
| 2019 | 6 | 7 |
| 2020 | 0 | 5 |
| 2021 | 8 | 8 |
| 2022 | 5 | 2 |
| 2023 | 2 | 6 |
| 2024 | 5 | 5 |
| 2025 | 2 | 2 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and processes for hydrocarbon upgrading using catalysts3 Mar 2026US 12,565,620 B2Saudi Arabian Oil Company
- Method for improving stability of catalyst in recycling HFC-2324 Feb 2026US 12,558,681 B2Sinochem Lantian Co., Ltd.
- Steam reforming24 Feb 2026US 12,559,368 B2Johnson Matthey Davy Technologies Limited
- Meshed catalyst based high-yield preparation and regeneration method for carbon nanotubes and hydrogen16 Dec 2025US 12,497,297 B2Southeast University
- Processes for producing trifluoroiodomethane and trifluoroacetyl iodide22 Apr 2025US 12,281,053 B2Honeywell International Inc.
- Nanocrystalline composite catalyst for alkane dehydrogenation and process for preparation thereof30 Jul 2026US 2026/0216716 A1Indian Oil Corporation Limited
- Mixed metal oxide catalyst system for the partial oxidation of alkanes to value added products and oxygenates2 Jul 2026US 2026/0183753 A1Council of Scientific and Industrial Research
- Multi-phase catalyst system for sustainable reduction of nitrous oxide emissions25 Jun 2026US 2026/0175207 A1
- Titanium dioxide asphalt compositions and methods for their application9 Apr 2026US 2026/0097395 A1CoolSeal LLC
- Method of coating a catalyst on flat or textured substrates10 Apr 2025US 2025/0114780 A1Johnson Matthey Public Limited Company
Most cited
By later US patents
- Dehydrogenation catalyst tablet and method for making same74US 4,139,497 AThe Dow Chemical Company · 1979
- Production of purified synthesis gas and carbon monoxide72US 4,081,253 ATexaco Development Corporation · 1978
- Semiconductor device for generating an electron beam and method of manufacturing same61US 4,303,930 AU. S. Philips Corporation · 1981
- Fuel gas production59US 4,021,370 ADavy Powergas GmbH · 1977
- Sintered metal bodies and manufacturing method therefor51US 5,427,601 ACorning Incorporated · 1995