B01J 23/74
Iron group metals
B01J23/74 (Iron group metals) appears on 3,523 US grants and 4,110 published applications in this corpus.
Search patents in B01J- Granted patents
- 3,523
- Published applications
- 4,110
- Assignees
- 1,804
- Inventors
- 10,326
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 58 | 0 |
| 1977 | 51 | 0 |
| 1978 | 36 | 0 |
| 1979 | 23 | 0 |
| 1980 | 27 | 0 |
| 1981 | 31 | 0 |
| 1982 | 22 | 0 |
| 1983 | 28 | 0 |
| 1984 | 29 | 0 |
| 1985 | 44 | 0 |
| 1986 | 35 | 0 |
| 1987 | 36 | 0 |
| 1988 | 37 | 0 |
| 1989 | 14 | 0 |
| 1990 | 19 | 0 |
| 1991 | 24 | 0 |
| 1992 | 21 | 0 |
| 1993 | 15 | 0 |
| 1994 | 21 | 0 |
| 1995 | 22 | 0 |
| 1996 | 17 | 0 |
| 1997 | 29 | 0 |
| 1998 | 21 | 0 |
| 1999 | 18 | 0 |
| 2000 | 28 | 0 |
| 2001 | 34 | 20 |
| 2002 | 34 | 57 |
| 2003 | 29 | 77 |
| 2004 | 50 | 94 |
| 2005 | 46 | 107 |
| 2006 | 51 | 88 |
| 2007 | 53 | 95 |
| 2008 | 45 | 135 |
| 2009 | 64 | 144 |
| 2010 | 91 | 175 |
| 2011 | 99 | 152 |
| 2012 | 90 | 167 |
| 2013 | 125 | 148 |
| 2014 | 112 | 183 |
| 2015 | 152 | 185 |
| 2016 | 162 | 184 |
| 2017 | 158 | 185 |
| 2018 | 161 | 203 |
| 2019 | 157 | 202 |
| 2020 | 163 | 236 |
| 2021 | 165 | 211 |
| 2022 | 172 | 249 |
| 2023 | 163 | 225 |
| 2024 | 169 | 219 |
| 2025 | 172 | 219 |
| 2026 | 100 | 150 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalysts for cargen, methods of preparing, and uses of same6 Oct 2026US 12,752,259 B2Qatar Foundation for Education, Science and Community Development
- Selective hydrogenation catalyst comprising a particular distribution of nickel and molybdenum6 Oct 2026US 12,752,261 B2Ifp Energies Nouvelles
- Thermocatalytic decomposition of methane using catalyst system design and operational parameters to control product yield and properties6 Oct 2026US 12,753,072 B2Battelle Memorial Institute
- Method for preparing acetic acid by catalyst22 Sep 2026US 12,741,922 B2Taiyuan University of Technology
- Method for preparing carbon nanotube-producing catalyst15 Sep 2026US 12,734,507 B2LG Chem.Ltd.
- Selective hydrodechlorination of liquid and gas streams from plastics pyrolysis processes8 Oct 2026US 2026/0308088 A1BASF SE
- Solar-powered flexible waste-to-fuels process1 Oct 2026US 2026/0295548 A1
- Catalyst for methane reforming and manufacturing method thereof1 Oct 2026US 2026/0295566 A1Hanwha Solutions Corporation
- Catalytic materials comprising fe-containing zeolitic material for the treatment of an exhaust gas1 Oct 2026US 2026/0295569 A1
- Reactor system and method thereof for degassing sulfur1 Oct 2026US 2026/0296887 A1Fluor Technologies Corporation
Most cited
By later US patents
- Conversion of synthesis gas to diesel fuel and gasoline292US 4,605,680 AChevron Research Company · 1986
- Process for the preparation of a Fischer-Tropsch catalyst and preparation of hydrocarbons from syngas250US 4,499,209 AShell Oil Company · 1985
- Method for fabricating carbon nanotube yarn236US 7,045,108 B2Hon Hai Precision Ind.Co., Ltd. · 2006
- Carbon fibers formed from single-wall carbon nanotubes204US 6,683,783 B1William Marsh Rice University · 2004
- DNA-bridged carbon nanotube arrays178US 6,958,216 B2The Trustees of Boston College · 2005