C23C 22/20
Containing aluminium cations
Official title: containing aluminium cations
C23C22/20 (Containing aluminium cations) appears on 78 US grants and 114 published applications in this corpus.
Search patents in C23C- Granted patents
- 78
- Published applications
- 114
- Assignees
- 29
- Inventors
- 240
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 1 | 2 |
| 2011 | 2 | 7 |
| 2012 | 1 | 0 |
| 2013 | 4 | 1 |
| 2014 | 1 | 3 |
| 2015 | 0 | 1 |
| 2016 | 2 | 3 |
| 2017 | 1 | 7 |
| 2018 | 1 | 5 |
| 2019 | 5 | 5 |
| 2020 | 4 | 5 |
| 2021 | 2 | 9 |
| 2022 | 7 | 16 |
| 2023 | 4 | 6 |
| 2024 | 13 | 11 |
| 2025 | 12 | 15 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical steel sheet having insulating coating, method for producing the same, transformer core and transformer using the electrical steel sheet, and method for reducing dielectric loss in transformer4 Aug 2026US 12,700,528 B2Jfe Steel Corporation
- Grain-oriented electrical steel sheet and method for forming insulating coating16 Jun 2026US 12,655,502 B2Nippon Steel Corporation
- Grain-oriented electrical steel sheet and method for forming insulating coating16 Jun 2026US 12,655,503 B2Nippon Steel Corporation
- Non-oriented electrical steel sheet and method for manufacturing the same9 Jun 2026US 12,649,957 B2Nippon Steel Corporation
- Method for producing electrical steel sheet7 Apr 2026US 12,595,525 B2Nippon Steel Corporation
- Grain-oriented electrical steel sheet and method for forming insulating coating17 Sep 2026US 2026/0279629 A1Nippon Steel Corporation
- Grain-oriented electrical steel sheet and method for forming insulating coating20 Aug 2026US 2026/0242905 A1Nippon Steel Corporation
- Grain-oriented electrical steel sheet and method for forming intermediate layer and insulating coating included in grain-oriented electrical steel sheet6 Aug 2026US 2026/0226574 A1Nippon Steel Corporation
- Method for manufacturing grain-oriented electrical steel sheet6 Aug 2026US 2026/0226576 A1Nippon Steel Corporation
- Method for manufacturing grain-oriented electrical steel sheet30 Jul 2026US 2026/0218346 A1Nippon Steel Corporation
Most cited
By later US patents
- Coated steel sheet having excellent corrosion resistance and method for producing the same53US 6,562,474 B1NKK Corporation · 2003
- Material for roofing and facing19US 5,114,799 ANisshin Steel Co., Ltd. · 1992
- Nickel-free metal phosphating composition and method for use16US 4,717,431 AAmchem Products, Inc. · 1988
- Treating a silicon steel material having a silicate protective coating thereon with an aqueous solution containing phosphates to form a further protective coating14US 4,120,702 AASEA Aktiebolag · 1978
- Surface-treated steel sheets of good white rust resistance, and method for producing them12US 7,291,402 B2Jfe Steel Corporation · 2007