B22D 31/002
Cleaning, working on castings
Official title: {Cleaning, working on castings}
B22D31/002 (Cleaning, working on castings) appears on 167 US grants and 122 published applications in this corpus.
Search patents in B22D- Granted patents
- 167
- Published applications
- 122
- Assignees
- 121
- Inventors
- 403
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 2 |
| 2002 | 3 | 7 |
| 2003 | 4 | 3 |
| 2004 | 2 | 4 |
| 2005 | 3 | 4 |
| 2006 | 0 | 4 |
| 2007 | 4 | 3 |
| 2008 | 0 | 4 |
| 2009 | 3 | 6 |
| 2010 | 1 | 5 |
| 2011 | 1 | 6 |
| 2012 | 5 | 4 |
| 2013 | 1 | 4 |
| 2014 | 6 | 3 |
| 2015 | 3 | 6 |
| 2016 | 2 | 6 |
| 2017 | 6 | 9 |
| 2018 | 5 | 3 |
| 2019 | 7 | 7 |
| 2020 | 7 | 6 |
| 2021 | 4 | 10 |
| 2022 | 7 | 2 |
| 2023 | 3 | 6 |
| 2024 | 5 | 5 |
| 2025 | 7 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for machining the edges of casting strands7 Apr 2026US 12,594,685 B2SMS group GmbH
- Method to produce void-free ferrous and non-ferrous aerospace structural castings23 Dec 2025US 12,503,773 B2Spirit AeroSystems, Inc.
- Method of manufacturing casing of turbocharger and casing of turbocharger30 Sep 2025US 12,427,568 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Method for producing a cylindrical hollow body made of aluminum or of an aluminum alloy or of a light metal alloy, cylindrical hollow body, and vehicle transmission23 Sep 2025US 12,420,333 B2ZF Friedrichshafen AG
- System and method of preparing a metal object for machining12 Aug 2025US 12,383,954 B1Techjet Aerofoils Ltd
- Post-processing device of cast product12 Jun 2025US 2025/0187069 A1Hyundai Motor Company
- Housing and method of preparing same using a hybrid casting-additive manufacturing process12 Jun 2025US 2025/0187073 A1Lockheed Martin Corporation
- Apparatus and method for producing a strip using a rapid solidification technology, and a metallic strip23 Jan 2025US 2025/0025936 A1Vacuumschmelze GmbH & Co.KG
- Brazing plug, component of a gas turbine and method12 Dec 2024US 2024/0410295 A1Siemens Energy Global GmbH & Co. KG
- Device and method for machining the edges of casting strands7 Nov 2024US 2024/0367332 A1SMS group GmbH
Most cited
By later US patents
- Impregnating equipment and method of vacuum impregnation36US 4,196,231 A1980
- Method and apparatus for heat treating metal castings36US 5,294,094 AConsolidated Engineering Company, Inc. · 1994
- Method for manufacturing aluminum alloy casting35US 4,411,709 AToyo Kogyo Co., Ltd. · 1983
- Method and apparatus for heat treating metal castings35US 5,350,160 AConsolidated Engineering Company, Inc. · 1994
- Impregnation of porous articles33US 4,384,014 A1983