B22D 29/002
By leaching, washing or dissolving
Official title: {by leaching, washing or dissolving}
B22D29/002 (By leaching, washing or dissolving) appears on 139 US grants and 149 published applications in this corpus.
Search patents in B22D- Granted patents
- 139
- Published applications
- 149
- Assignees
- 63
- Inventors
- 283
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 0 |
| 2003 | 2 | 2 |
| 2004 | 2 | 4 |
| 2005 | 2 | 4 |
| 2006 | 0 | 4 |
| 2007 | 5 | 6 |
| 2008 | 1 | 2 |
| 2009 | 0 | 5 |
| 2010 | 0 | 2 |
| 2011 | 5 | 2 |
| 2012 | 1 | 6 |
| 2013 | 2 | 2 |
| 2014 | 4 | 5 |
| 2015 | 4 | 5 |
| 2016 | 1 | 7 |
| 2017 | 8 | 12 |
| 2018 | 8 | 30 |
| 2019 | 11 | 8 |
| 2020 | 10 | 7 |
| 2021 | 11 | 14 |
| 2022 | 9 | 8 |
| 2023 | 8 | 3 |
| 2024 | 7 | 8 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Molding core for manufacturing a hollow OMC part20 Jan 2026US 12,528,234 B2Safran
- Composition, core and mould for casting and moulding processes6 May 2025US 12,290,854 B2Foseco International Limited
- Parent bore cylinder block of an opposed-piston engine29 Apr 2025US 12,286,940 B2Achates Power, Inc.
- Injection-molding device and method for manufacturing parts made of metallic glass18 Mar 2025US 12,251,754 B2Vulkam
- Method for chemically pickling a cast metal part with porous ceramic core(s)24 Dec 2024US 12,173,415 B2Safran Aircraft Engines
- Inorganic water-soluble binder system27 Aug 2026US 2026/0249346 A1Foseco International Limited
- Processes and systems for spray deposition onto polymer substrates and via masks to produce flow devices27 Mar 2025US 2025/0101564 A1The Governing Council of the University of Toronto
- Parent bore cylinder block of an opposed-piston engine28 Nov 2024US 2024/0392734 A1Achates Power, Inc.
- Improved foundry core for manufacturing a hollow metal aeronautical part17 Oct 2024US 2024/0342787 A1Safran
- Improved molding core for manufacturing a hollow omc part17 Oct 2024US 2024/0342963 A1Safran
Most cited
By later US patents
- Cores for use in precision investment casting103US 6,637,500 B2United Technologies Corporation · 2003
- Reticulated foam structure68US 3,946,039 AEnergy Research & Generation, Inc. · 1976
- Cores for investment casting process49US 4,093,017 ASherwood Refractories, Inc. · 1978
- Illuminated and modular soft tissue retractor48US 9,718,130 B1Invuity, Inc. · 2017
- Process for core removal from molded products46US 5,089,186 AAdvanced Plastics Partnership · 1992