C22C 33/02
Making ferrous alloys: by powder metallurgy
Official title: by powder metallurgy
C22C33/02 (Making ferrous alloys: by powder metallurgy) appears on 2,195 US grants and 2,546 published applications in this corpus.
Search patents in C22C- Granted patents
- 2,195
- Published applications
- 2,546
- Assignees
- 1,015
- Inventors
- 5,124
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 24 | 0 |
| 1978 | 26 | 0 |
| 1979 | 17 | 0 |
| 1980 | 23 | 0 |
| 1981 | 21 | 0 |
| 1982 | 20 | 0 |
| 1983 | 12 | 0 |
| 1984 | 15 | 0 |
| 1985 | 23 | 0 |
| 1986 | 23 | 0 |
| 1987 | 25 | 0 |
| 1988 | 27 | 0 |
| 1989 | 33 | 0 |
| 1990 | 39 | 0 |
| 1991 | 32 | 0 |
| 1992 | 23 | 0 |
| 1993 | 18 | 0 |
| 1994 | 26 | 0 |
| 1995 | 22 | 0 |
| 1996 | 42 | 0 |
| 1997 | 27 | 0 |
| 1998 | 31 | 0 |
| 1999 | 40 | 0 |
| 2000 | 41 | 0 |
| 2001 | 35 | 7 |
| 2002 | 39 | 33 |
| 2003 | 37 | 46 |
| 2004 | 37 | 39 |
| 2005 | 16 | 44 |
| 2006 | 17 | 44 |
| 2007 | 29 | 48 |
| 2008 | 21 | 49 |
| 2009 | 23 | 60 |
| 2010 | 25 | 63 |
| 2011 | 26 | 76 |
| 2012 | 44 | 83 |
| 2013 | 34 | 99 |
| 2014 | 43 | 100 |
| 2015 | 63 | 129 |
| 2016 | 63 | 157 |
| 2017 | 86 | 116 |
| 2018 | 91 | 162 |
| 2019 | 107 | 145 |
| 2020 | 108 | 179 |
| 2021 | 103 | 198 |
| 2022 | 111 | 146 |
| 2023 | 120 | 169 |
| 2024 | 126 | 160 |
| 2025 | 86 | 116 |
| 2026 | 53 | 78 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Soft magnetic alloy powder and production method therefor6 Oct 2026US 12,753,473 B2Mitsubishi Steel Mfg. Co., Ltd.
- Bulk metallic glass-based alloys for additive manufacturing18 Aug 2026US 12,709,789 B2Questek Europe AB
- Fe—N—C catalysts synthesized by non-contact pyrolysis of gas phase iron11 Aug 2026US 12,706,314 B2Northeastern University
- High frequency low loss magnetic core and method of manufacture4 Aug 2026US 12,700,529 B2Powdermet, Inc.
- Wave-absorbing heat-generating coating for melting ice on wind turbine blade, and preparation method therefor16 Jun 2026US 12,655,308 B2Xi'an Thermal Power Research Institute Co., Ltd.
- 3d printed high carbon content steel and method of preparing the same24 Sep 2026US 2026/0286475 A1VBN Components AB
- Methods for manufacturing additive manufacturing components27 Aug 2026US 2026/0249350 A1Valls Besitz GmbH
- Steel powder for use in additive manufacturing processes27 Aug 2026US 2026/0250820 A1
- Barrel as well as method for the manufacturing of barrel segments and method for the manufacturing of a barrel and a firing device comprising a barrel13 Aug 2026US 2026/0233305 A1Bae Systems Bofors AB
- Near net shape fabrication of anisotropic magnet using hot roll method13 Aug 2026US 2026/0233306 A1Iowa State University Research Foundation, Inc.
Most cited
By later US patents
- Lightweight polymer ammunition cartridge casings245US 8,561,543 B2True Velocity, Inc. · 2013
- Method of making lightweight polymer ammunition208US 9,441,930 B2True Velocity, Inc. · 2016
- Lightweight polymer ammunition203US 9,429,407 B2True Velocity, Inc. · 2016
- Adept three-dimensional printing179US 9,662,840 B1Velo3D, Inc. · 2017
- Polymer ammunition cartridge having a wicking texturing176US 9,631,907 B2True Velocity, Inc. · 2017