B22F 1/145
Chemical treatment
Official title: Chemical treatment, e.g. passivation or decarburisation
B22F1/145 (Chemical treatment) appears on 462 US grants and 576 published applications in this corpus.
Search patents in B22F- Granted patents
- 462
- Published applications
- 576
- Assignees
- 412
- Inventors
- 1,607
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 3 |
| 2002 | 13 | 12 |
| 2003 | 4 | 10 |
| 2004 | 14 | 10 |
| 2005 | 4 | 13 |
| 2006 | 3 | 4 |
| 2007 | 7 | 8 |
| 2008 | 2 | 11 |
| 2009 | 7 | 8 |
| 2010 | 8 | 10 |
| 2011 | 5 | 7 |
| 2012 | 7 | 12 |
| 2013 | 2 | 8 |
| 2014 | 10 | 16 |
| 2015 | 16 | 13 |
| 2016 | 16 | 15 |
| 2017 | 11 | 26 |
| 2018 | 10 | 33 |
| 2019 | 9 | 27 |
| 2020 | 24 | 34 |
| 2021 | 21 | 39 |
| 2022 | 26 | 49 |
| 2023 | 33 | 60 |
| 2024 | 39 | 80 |
| 2025 | 32 | 43 |
| 2026 | 31 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Reactive metal powders in-flight heat treatment processes6 Oct 2026US 12,752,340 B2AP&C Advanced Powders & Coatings, Inc.
- Method of preparing metal particle dispersion15 Sep 2026US 12,734,579 B2New Tech S.r.l.
- Method for producing tantalum powder for capacitors by reducing tantalum oxide with alkaline earth metal15 Sep 2026US 12,734,580 B2Ningxia Orient Tantalum Industry Co., Ltd.
- Samarium-iron-nitrogen based magnet powder and samarium-iron-nitrogen based magnet1 Sep 2026US 12,725,721 B2National Institute of Advanced Industrial Science and Technology
- Powder dispersion composition and dispersing method thereof25 Aug 2026US 12,715,035 B2Shiseido Company, Ltd.
- Durable metal-mxene composites and methods of making the same8 Oct 2026US 2026/0307145 A1The University of Chicago
- Gradient structure wear-resistant composite material and its preparation method10 Sep 2026US 2026/0264143 A1Hunan Hechang New Materials Co., Ltd
- Silver-coated nickel paste, preparation method thereof, and high-temperature sintering metallization method for crystalline silicon solar cells13 Aug 2026US 2026/0233300 A1Suzhou Xinghan New Material Technology Co., LTD
- Additive manufacturing powders with improved physical characteristics, method of manufacture and use thereof13 Aug 2026US 2026/0233302 A1Tekna Plasma Systems Inc.
- Aluminum powder product6 Aug 2026US 2026/0225155 A1Mitsubishi Materials Corporation
Most cited
By later US patents
- Method of making environmentally stable reactive alloy powders127US 5,372,629 AIowa State University Research Foundation, Inc. · 1994
- Titanium powder containing solid-soluted nitrogen, titanium material, and method for producing titanium powder containing solid-soluted nitrogen117US 10,213,837 B2Hi-Lex Corporation · 2019
- Method for producing environmentally stable reactive alloy powders108US 6,444,009 B1Nanotek Instruments, Inc. · 2002
- Method for deoxidizing tantalum material93US 4,722,756 ACabot Corporation · 1988
- Environmentally stable reactive alloy powders and method of making same91US 5,811,187 AIowa State University Research Foundation, Inc. · 1998