B22F 2201/30
Carburising atmosphere
B22F2201/30 (Carburising atmosphere) appears on 26 US grants and 23 published applications in this corpus.
Search patents in B22F- Granted patents
- 26
- Published applications
- 23
- Assignees
- 23
- Inventors
- 58
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 3 | 3 |
| 2022 | 0 | 2 |
| 2023 | 1 | 2 |
| 2024 | 4 | 3 |
| 2025 | 3 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Variable diffusion carburizing method17 Feb 2026US 12,553,118 B2GKN Sinter Metals, LLC
- Method for manufacturing combination or compound gears29 Apr 2025US 12,285,803 B1Keystone Powdered Metal Company
- Systems and methods for nanofunctionalization of powders4 Mar 2025US 12,239,967 B2HRL Laboratories, LLC
- Process for manufacturing toroid parts7 Jan 2025US 12,186,808 B2Keystone Powdered Metal Company
- Method and device for producing material powder23 Jul 2024US 12,042,869 B2Metalpine GmbH
- Methods for hardening select portions of metal articles, additive manufacturing systems associated therewith, and metal articles19 Dec 2024US 2024/0416421 A1The Boeing Company
- Method of making a powder for additive manufacturing6 Jun 2024US 2024/0181526 A1Sandvik Machining Solutions AB
- Process for manufacturing toroid parts16 May 2024US 2024/0157439 A1Keystone Powdered Metal Company
- Systems and methods for nanofunctionalization of powders28 Dec 2023US 2023/0415112 A1HRL Laboratories, LLC
- 3d printable hard ferrous metallic alloys for powder bed fusion2 Mar 2023US 2023/0063455 A1MacLean-Fogg Company
Most cited
By later US patents
- Cemented carbide with binder phase enriched surface zone25US 5,451,469 ASandvik AB · 1995
- Stratified enriched zones formed by the gas phase carburization and the slow cooling of cemented carbide substrates, and methods of manufacture23US 5,494,635 AValenite Inc. · 1996
- Cemented carbide with binder phase enriched surface zone23US 5,649,279 ASandvik AB · 1997
- High density ferrous power metal alloy19US 5,613,180 AKeystone Investment Corporation · 1997
- Method of making powdered metal parts17US 3,992,763 AFederal-Mogul Corporation · 1976