C22C 21/00
Alloys based on aluminium
C22C21/00 (Alloys based on aluminium) appears on 3,479 US grants and 4,681 published applications in this corpus.
Search patents in C22C- Granted patents
- 3,479
- Published applications
- 4,681
- Assignees
- 1,493
- Inventors
- 8,523
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 13 | 0 |
| 1978 | 28 | 0 |
| 1979 | 17 | 0 |
| 1980 | 19 | 0 |
| 1981 | 18 | 0 |
| 1982 | 9 | 0 |
| 1983 | 11 | 0 |
| 1984 | 13 | 0 |
| 1985 | 12 | 0 |
| 1986 | 22 | 0 |
| 1987 | 27 | 0 |
| 1988 | 28 | 0 |
| 1989 | 61 | 0 |
| 1990 | 45 | 0 |
| 1991 | 38 | 0 |
| 1992 | 45 | 0 |
| 1993 | 28 | 0 |
| 1994 | 42 | 0 |
| 1995 | 41 | 0 |
| 1996 | 50 | 0 |
| 1997 | 32 | 0 |
| 1998 | 45 | 0 |
| 1999 | 45 | 0 |
| 2000 | 35 | 0 |
| 2001 | 50 | 38 |
| 2002 | 63 | 76 |
| 2003 | 80 | 81 |
| 2004 | 49 | 101 |
| 2005 | 42 | 83 |
| 2006 | 28 | 82 |
| 2007 | 27 | 64 |
| 2008 | 17 | 94 |
| 2009 | 29 | 126 |
| 2010 | 42 | 127 |
| 2011 | 52 | 129 |
| 2012 | 80 | 172 |
| 2013 | 69 | 156 |
| 2014 | 67 | 186 |
| 2015 | 110 | 253 |
| 2016 | 127 | 278 |
| 2017 | 154 | 297 |
| 2018 | 177 | 276 |
| 2019 | 213 | 309 |
| 2020 | 196 | 273 |
| 2021 | 178 | 292 |
| 2022 | 193 | 269 |
| 2023 | 211 | 272 |
| 2024 | 178 | 251 |
| 2025 | 172 | 227 |
| 2026 | 125 | 169 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C22C 21/02Alloys based on aluminium: with silicon as the next major constituent1,176
- C22C 21/06Alloys based on aluminium: with magnesium as the next major constituent1,018
- C22C 21/10Alloys based on aluminium: with zinc as the next major constituent623
- C22C 21/12Alloys based on aluminium: with copper as the next major constituent565
- C22C 21/003Containing at least 2.6% of one or more of the elements: tin162
- C22C 21/006Containing hg0
Recent patents
- High-strength solder-plated Al—Mg—Si aluminum material6 Oct 2026US 12,753,475 B2Speira GmbH
- Aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and method for manufacturing same6 Oct 2026US 12,753,479 B2Posco
- Aluminum alloy with high electrical conductivity and elevated temperature strength for use in electric vehicle motors6 Oct 2026US 12,756,245 B2Ford Global Technologies, LLC
- Metal alloy surface modification methods and related metal alloy products with improved bond durability29 Sep 2026US 12,746,619 B2Novelis Inc.
- Steel sheet for hot stamping29 Sep 2026US 12,747,484 B2Nippon Steel Corporation
- Durable metal-mxene composites and methods of making the same8 Oct 2026US 2026/0307145 A1The University of Chicago
- Method for preparing a metal alloy8 Oct 2026US 2026/0308718 A1Constellium Muscle Shoals LLC
- Rapidly solidified aluminum-rare earth element alloy and method of making the same8 Oct 2026US 2026/0308738 A1Eck Industries, Inc.
- Multi-component sealing coating powder material and preparation method thereof1 Oct 2026US 2026/0297705 A1BGRIMM Advanced Materials Science & Technology Co., Ltd.
- Aluminum alloy sheet and method for producing aluminum alloy sheet1 Oct 2026US 2026/0297708 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Most cited
By later US patents
- Aged-hardenable aluminum alloy with environmental degradability, methods of use and making130US 8,211,248 B2Schlumberger Technology Corporation · 2012
- Rapidly solidified high-temperature aluminum iron silicon alloys126US 10,435,773 B2GM Global Technology Operations LLC · 2019
- Rapidly solidified high-temperature aluminum iron silicon alloys121US 10,294,552 B2GM Global Technology Operations LLC · 2019
- Method for preparing cryomilled aluminum alloys and components extruded and forged therefrom114US 6,902,699 B2The Boeing Company · 2005
- Degradable compositions, apparatus comprising same, and method of use106US 8,211,247 B2Schlumberger Technology Corporation · 2012