C04B 2237/405
Iron metal group
Official title: Iron metal group, e.g. Co or Ni
C04B2237/405 (Iron metal group) appears on 575 US grants and 377 published applications in this corpus.
Search patents in C04B- Granted patents
- 575
- Published applications
- 377
- Assignees
- 319
- Inventors
- 1,283
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 18 | 0 |
| 1987 | 24 | 0 |
| 1988 | 20 | 0 |
| 1989 | 21 | 0 |
| 1990 | 25 | 0 |
| 1991 | 30 | 0 |
| 1992 | 24 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 13 | 9 |
| 2002 | 13 | 16 |
| 2003 | 30 | 27 |
| 2004 | 14 | 25 |
| 2005 | 18 | 20 |
| 2006 | 13 | 19 |
| 2007 | 21 | 13 |
| 2008 | 15 | 17 |
| 2009 | 9 | 11 |
| 2010 | 8 | 18 |
| 2011 | 4 | 10 |
| 2012 | 13 | 25 |
| 2013 | 7 | 15 |
| 2014 | 10 | 16 |
| 2015 | 15 | 12 |
| 2016 | 12 | 21 |
| 2017 | 6 | 18 |
| 2018 | 18 | 9 |
| 2019 | 11 | 14 |
| 2020 | 10 | 7 |
| 2021 | 8 | 6 |
| 2022 | 3 | 9 |
| 2023 | 7 | 10 |
| 2024 | 5 | 11 |
| 2025 | 11 | 14 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compliant suture-based joinery21 Apr 2026US 12,606,495 B2Lawrence Livermore National Security, LLC
- Method for manufacturing an abradable layer31 Mar 2026US 12,590,035 B2Centre National De La Recherche Scientifique
- Processing apparatuses and methods of using27 Jan 2026US 12,533,869 B2QuantumScape Battery, Inc.
- Method for manufacturing printed circuit board6 Jan 2026US 12,520,435 B2Fj Composite Materials Co., Ltd.
- Susceptor and method of manufacturing the same23 Dec 2025US 12,506,025 B2Semes Co., Ltd.
- Metal-ceramic substrate and process for producing a metal-ceramic substrate20 Aug 2026US 2026/0242289 A1
- Processing apparatuses and methods of using13 Aug 2026US 2026/0233495 A1QuantumScape Battery, Inc.
- Method for producing a metal-ceramic substrate, and metal-ceramic substrate produced using such a method13 Aug 2026US 2026/0239541 A1
- Rapid ceramic processing techniques and equipment7 May 2026US 2026/0124785 A1QuantumScape Battery, Inc.
- Processing apparatuses and methods of using23 Apr 2026US 2026/0109138 A1QuantumScape Battery, Inc.
Most cited
By later US patents
- Compact of boron-doped diamond and method for making same385US 4,268,276 AGeneral Electric Company · 1981
- Cutting element having composite formed of cemented carbide substrate and diamond layer and method of making same258US 4,784,023 ADiamant Boart-Stratabit (USA) Inc. · 1988
- Electrostatic chuck having gas cavity and method244US 6,310,755 B1APPLIED Materials.Inc. · 2001
- Dual grade carbide substrate for earth-boring drill bit cutting elements, drill bits so equipped, and methods166US 6,216,805 B1Baker Hughes Incorporated · 2001
- Functionally stepped, resistive ceramic163US 5,880,439 APhilip Morris Incorporated · 1999