C22C 21/02
Alloys based on aluminium: with silicon as the next major constituent
Official title: with silicon as the next major constituent
C22C21/02 (Alloys based on aluminium: with silicon as the next major constituent) appears on 1,176 US grants and 1,757 published applications in this corpus.
Search patents in C22C- Granted patents
- 1,176
- Published applications
- 1,757
- Assignees
- 596
- Inventors
- 3,337
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 8 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 11 | 0 |
| 1990 | 14 | 0 |
| 1991 | 10 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 12 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 11 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 8 |
| 2002 | 20 | 24 |
| 2003 | 22 | 29 |
| 2004 | 18 | 35 |
| 2005 | 13 | 28 |
| 2006 | 10 | 31 |
| 2007 | 11 | 25 |
| 2008 | 3 | 18 |
| 2009 | 8 | 41 |
| 2010 | 11 | 54 |
| 2011 | 13 | 44 |
| 2012 | 29 | 62 |
| 2013 | 24 | 44 |
| 2014 | 30 | 73 |
| 2015 | 38 | 90 |
| 2016 | 49 | 113 |
| 2017 | 60 | 134 |
| 2018 | 67 | 115 |
| 2019 | 78 | 116 |
| 2020 | 79 | 108 |
| 2021 | 65 | 102 |
| 2022 | 80 | 83 |
| 2023 | 86 | 120 |
| 2024 | 68 | 101 |
| 2025 | 68 | 91 |
| 2026 | 47 | 68 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High-strength solder-plated Al—Mg—Si aluminum material6 Oct 2026US 12,753,475 B2Speira GmbH
- Steel sheet for hot stamping29 Sep 2026US 12,747,484 B2Nippon Steel Corporation
- Surface treatment for aluminum alloys22 Sep 2026US 12,742,078 B2The Boeing Company
- Strip made of 6XXX alloy and manufacturing process25 Aug 2026US 12,716,121 B2Constellium Muscle Soals LLC
- Methods and systems for die casting4 Aug 2026US 12,698,547 B2MetaLi LLC
- Method for preparing a metal alloy8 Oct 2026US 2026/0308718 A1Constellium Muscle Shoals LLC
- Aluminum alloy sheet and method for producing aluminum alloy sheet1 Oct 2026US 2026/0297708 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Shaped Sheet-Metal Part with Improved Welding Properties17 Sep 2026US 2026/0275483 A1ThyssenKrupp Steel Europe AG
- Al-si alloy for casting, al-si alloy casting and method for producing al-si alloy casting3 Sep 2026US 2026/0258528 A1Nikkei Mc Aluminium Co., Ltd.
- High recycle content aluminum alloys for automotive skin3 Sep 2026US 2026/0258529 A1Novelis Inc.
Most cited
By later US patents
- Aluminum alloys containing scandium with zirconium additions94US 5,620,652 AAshurst Technology Corporation (Ireland Limited) · 1997
- Aluminum-scandium alloys64US 5,597,529 AAshurst Technology Corporation (Ireland Limited) · 1997
- Amorphous electrode compositions60US 6,699,336 B23M Innovative Properties Company · 2004
- Method of manufacturing sheets, strips and foils from age hardenable aluminum alloys of the Al-Si-Mg-type46US 4,174,232 ASwiss Aluminium Ltd. · 1979
- Aluminum sheet products having improved fatigue crack growth resistance and methods of making same45US 6,562,154 B1Aloca Inc. · 2003