B22C 9/086
Filters
Official title: {Filters}
B22C9/086 (Filters) appears on 89 US grants and 91 published applications in this corpus.
Search patents in B22C- Granted patents
- 89
- Published applications
- 91
- Assignees
- 76
- Inventors
- 298
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 3 |
| 2006 | 3 | 2 |
| 2007 | 0 | 5 |
| 2008 | 0 | 0 |
| 2009 | 2 | 2 |
| 2010 | 0 | 4 |
| 2011 | 2 | 5 |
| 2012 | 4 | 2 |
| 2013 | 0 | 3 |
| 2014 | 4 | 3 |
| 2015 | 1 | 1 |
| 2016 | 2 | 3 |
| 2017 | 1 | 7 |
| 2018 | 2 | 5 |
| 2019 | 5 | 2 |
| 2020 | 1 | 6 |
| 2021 | 3 | 7 |
| 2022 | 1 | 9 |
| 2023 | 7 | 6 |
| 2024 | 6 | 3 |
| 2025 | 3 | 7 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Casting mold and method for producing a casting28 Oct 2025US 12,454,001 B2Nemak, S. A. B. De C.V.
- Molten metal filtration box heating apparatus29 Jul 2025US 12,370,597 B2Pyrotek, Inc.
- Molten metal filter device for casting vehicle components22 Apr 2025US 12,280,421 B2GM Global Technology Operations LLC
- High-temperature-resistant casting system and preparation method thereof1 Oct 2024US 12,103,066 B2Changzhou Wanxing Paper Plastic Co., Ltd.
- Riser tube coating for cast aluminum alloy and using method thereof17 Sep 2024US 12,090,545 B2Citic Co., Limited
- Countergravity Casting Apparatus and Desulfurization Methods19 Feb 2026US 2026/0048433 A1Rtx Corporation
- Low-Pressure Mold and Production Process for Aluminum Alloy Integrated Brake Calipers18 Dec 2025US 2025/0381595 A1CITIC Dicastal Co., Ltd.
- Filter For The Filtration Of A Liquid Metal30 Oct 2025US 2025/0332636 A1Les Produits Industriels de Haute Temperature Pyrotek Inc.
- Casting Mold and Method for Producing a Casting28 Aug 2025US 2025/0269424 A1Nemak, S. A. B. De C.V.
- Filter element for flow stabilisation and/or purifying a melt obtained during casting, and a method for producing a filter element24 Jul 2025US 2025/0235924 A1
Most cited
By later US patents
- Molten metal filtration and distribution device and method for manufacturing the same116US 6,270,717 B1Les Produits Industriels de Haute Temperature Pyrotek Inc. · 2001
- Sand casting mold riser/sprue sleeve112US 5,425,410 APyrotek, Inc. · 1995
- Process for producing a porous ceramic and porous ceramic composite structure utilizing combustion synthesis40US 5,279,737 AUniversity of Cincinnati · 1994
- Metal casting26US 4,112,997 AHitchiner Manufacturing Co., Inc. · 1978
- Molten metals filter apparatus20US 4,576,219 ACertech Incorporated · 1986