B01J 2531/842
Iron
B01J2531/842 (Iron) appears on 755 US grants and 687 published applications in this corpus.
Search patents in B01J- Granted patents
- 755
- Published applications
- 687
- Assignees
- 497
- Inventors
- 2,091
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 13 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 11 | 0 |
| 1991 | 9 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 11 | 0 |
| 1996 | 20 | 0 |
| 1997 | 12 | 0 |
| 1998 | 18 | 0 |
| 1999 | 21 | 0 |
| 2000 | 25 | 0 |
| 2001 | 15 | 6 |
| 2002 | 17 | 11 |
| 2003 | 17 | 13 |
| 2004 | 13 | 26 |
| 2005 | 17 | 23 |
| 2006 | 8 | 18 |
| 2007 | 16 | 22 |
| 2008 | 14 | 16 |
| 2009 | 12 | 21 |
| 2010 | 14 | 28 |
| 2011 | 18 | 29 |
| 2012 | 8 | 22 |
| 2013 | 16 | 34 |
| 2014 | 17 | 46 |
| 2015 | 21 | 26 |
| 2016 | 33 | 27 |
| 2017 | 26 | 36 |
| 2018 | 34 | 34 |
| 2019 | 43 | 63 |
| 2020 | 39 | 34 |
| 2021 | 24 | 27 |
| 2022 | 16 | 31 |
| 2023 | 25 | 24 |
| 2024 | 23 | 31 |
| 2025 | 21 | 26 |
| 2026 | 5 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Synthesis of atomically dispersed M—N—C catalysts via selective metalation11 Aug 2026US 12,702,970 B2Wisconsin Alumni Research Foundation
- MOFS/COFS heterojunction composite photocatalyst and preparation method and application thereof23 Jun 2026US 12,661,642 B2Guangdong Institute of Eco-Environment and Soil Sciences
- Air-stable ni(0)-olefin complexes and their use as catalysts or precatalysts24 Feb 2026US 12,558,677 B2Studiengesellschaft Kohle mbH
- Diphenylamine-linked chiral bis(oxazoline) ligand without C2-symmetry, synthesis method and application thereof10 Feb 2026US 12,545,651 B2Zhejiang University of Technology
- Visible light-reactive photocatalyst for treating organic pollutants20 Jan 2026US 12,528,070 B2Kyungpook National Univesity Industry-Academic Cooperation Foundation
- Catalyst for ammonia synthesis obtained by combining hydrogen-containing aluminum and iron3 Sep 2026US 2026/0257929 A1Institute of Science Tokyo
- Process for Producing Guerbet Alcohols from Fusel Alcohols20 Aug 2026US 2026/0242315 A1Terra Mater BV
- 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.
- Selective hydrogenation6 Aug 2026US 2026/0225090 A1Dsm IP Assets B.V.
Most cited
By later US patents
- Texaphyrin-oligonucleotide conjugates308US 5,587,371 ABoard of Trustees, Univ. of TX Sys. · 1996
- Crystalline metal-organic microporous materials153US 5,648,508 ANalco Chemical Company · 1997
- Polymerization of ethylene140US 5,955,555 AE. I. Du Pont de Nemours and Company · 1999
- Alkane and alkane group dehydrogenation with organometallic catalysts110US 6,909,009 B22005
- Porphyrins97US 4,892,941 A1990