B22D 21/025
Casting heavy metals with high melting point, i.e. 1000 - 1600 degrees
Official title: {Casting heavy metals with high melting point, i.e. 1000 - 1600 degrees C, e.g. Co 1490 degrees C, Ni 1450 degrees C, Mn 1240 degrees C, Cu 1083 degrees C}
B22D21/025 (Casting heavy metals with high melting point, i.e. 1000 - 1600 degrees) appears on 95 US grants and 148 published applications in this corpus.
Search patents in B22D- Granted patents
- 95
- Published applications
- 148
- Assignees
- 93
- Inventors
- 322
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
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| 1983 | 0 | 0 |
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| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
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| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 4 | 3 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 5 |
| 2008 | 1 | 4 |
| 2009 | 0 | 6 |
| 2010 | 2 | 6 |
| 2011 | 2 | 4 |
| 2012 | 4 | 2 |
| 2013 | 4 | 8 |
| 2014 | 2 | 6 |
| 2015 | 4 | 11 |
| 2016 | 5 | 22 |
| 2017 | 8 | 5 |
| 2018 | 15 | 7 |
| 2019 | 3 | 8 |
| 2020 | 5 | 7 |
| 2021 | 6 | 8 |
| 2022 | 8 | 5 |
| 2023 | 6 | 4 |
| 2024 | 2 | 5 |
| 2025 | 3 | 9 |
| 2026 | 3 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oxidation and SRZ resistant coatings on nickel superalloys12 May 2026US 12,624,420 B2Pratt & Whitney Canada Corp.
- Nickel alloy having superior surface properties and production method for the same3 Feb 2026US 12,540,374 B2Nippon Yakin Kogyo Co., Ltd.
- Nickel-based alloy having superior surface properties and production method for the same3 Feb 2026US 12,540,376 B2Nippon Yakin Kogyo Co., Ltd.
- Copper-aluminum composite plate material prepared by aluminum liquid continuous casting and process thereof2 Dec 2025US 12,485,475 B2Guangzhou Zhongshan New Energy Technology Co., Ltd.
- Arcuate seed casting method7 Oct 2025US 12,434,295 B2Rtx Corporation
- Surface Alloying and Surface Compositing of Copper Alloys During Casting to Improve Corrosion Resistance, Wear Resistance, and Machinability1 Oct 2026US 2026/0297718 A1UWM Research Foundation, Inc.
- Oxidation and SRZ Resistant Coatings on Nickel Superalloys17 Sep 2026US 2026/0275460 A1Pratt & Whitney Canada Corp.
- Pulse magnetic field treatment method for eliminating residual stress in copper alloy foils20 Aug 2026US 2026/0242917 A1Taiyuan University of Technology
- Method and device for preparing an oxygen-free copper pipe from recycled copper, and a corrosion-resistant copper pipe and its casting process11 Jun 2026US 2026/0159917 A1Zhejiang Copper Processing Research Institute Co., Ltd.
- Ni-cr-fe-mo alloys with excellent surface properties and their production methods28 May 2026US 2026/0146308 A1Nippon Yakin Kogyo Co., Ltd.
Most cited
By later US patents
- Centrifugal casting of titanium alloys with improved surface quality, structural integrity and mechanical properties in isotropic graphite molds under vacuum47US 6,776,214 B2Santoku America, Inc. · 2004
- Castings of metallic alloys with improved surface quality, structural integrity and mechanical properties fabricated in anisotropic pyrolytic graphite molds under vacuum37US 6,705,385 B2Santoku America, Inc. · 2004
- Centrifugal casting of titanium alloys with improved surface quality, structural integrity and mechanical properties in isotropic graphite molds under vacuum26US 6,755,239 B2Santoku America, Inc. · 2004
- Castings of metallic alloys with improved surface quality, structural integrity and mechanical properties fabricated in titanium carbide coated graphite molds under vacuum20US 6,799,627 B2Santoku America, Inc. · 2004
- Permanent mold casting of reactive melt16US 5,287,910 AHowmet Corporation · 1994