B22C 9/04
Use of lost patterns
B22C9/04 (Use of lost patterns) appears on 1,028 US grants and 851 published applications in this corpus.
Search patents in B22C- Granted patents
- 1,028
- Published applications
- 851
- Assignees
- 369
- Inventors
- 1,738
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 10 | 0 |
| 1978 | 9 | 0 |
| 1979 | 7 | 0 |
| 1980 | 11 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 9 | 0 |
| 1984 | 8 | 0 |
| 1985 | 14 | 0 |
| 1986 | 16 | 0 |
| 1987 | 15 | 0 |
| 1988 | 16 | 0 |
| 1989 | 15 | 0 |
| 1990 | 20 | 0 |
| 1991 | 20 | 0 |
| 1992 | 5 | 0 |
| 1993 | 12 | 0 |
| 1994 | 24 | 0 |
| 1995 | 5 | 0 |
| 1996 | 12 | 0 |
| 1997 | 21 | 0 |
| 1998 | 18 | 0 |
| 1999 | 26 | 0 |
| 2000 | 15 | 0 |
| 2001 | 13 | 7 |
| 2002 | 28 | 20 |
| 2003 | 23 | 25 |
| 2004 | 20 | 31 |
| 2005 | 21 | 32 |
| 2006 | 25 | 41 |
| 2007 | 34 | 42 |
| 2008 | 20 | 41 |
| 2009 | 12 | 25 |
| 2010 | 22 | 38 |
| 2011 | 30 | 29 |
| 2012 | 23 | 28 |
| 2013 | 19 | 29 |
| 2014 | 18 | 41 |
| 2015 | 28 | 68 |
| 2016 | 43 | 56 |
| 2017 | 46 | 54 |
| 2018 | 36 | 44 |
| 2019 | 47 | 43 |
| 2020 | 36 | 40 |
| 2021 | 47 | 32 |
| 2022 | 28 | 24 |
| 2023 | 21 | 16 |
| 2024 | 28 | 26 |
| 2025 | 20 | 14 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Skin passageway trip strips18 Aug 2026US 12,709,984 B2Rtx Corporation
- Electric machine cooling plate for aircraft powerplant28 Apr 2026US 12,615,746 B1Rtx Corporation
- Hybrid setter for investment casting cores and method of using7 Apr 2026US 12,594,594 B2
- Device and method for producing an investment casting component31 Mar 2026US 12,589,432 B2ALD Vacuum Technologies GmbH
- Co-reactive additive manufacturing compositions and articles for use in investment casting3 Mar 2026US 12,564,876 B2PPG Industries Ohio, Inc.
- Hybrid setter for investment casting cores and method of using24 Sep 2026US 2026/0284735 A1Blasch Precision Ceramics, Inc.
- Method for Producing a Support Structure13 Aug 2026US 2026/0233419 A1Bayerische Motoren Werke Aktiengesellschaft
- Methods for creating partially reusable casting molds and/or multiple copies of a part using the same, related systems, molds, and parts7 May 2026US 2026/0124672 A1
- Skin Passageway Trip Strips30 Apr 2026US 2026/0117659 A1Rtx Corporation
- Creating complex three-dimensional wax models for investment casting29 Jan 2026US 2026/0027611 A1International Business Machines Corporation
Most cited
By later US patents
- Systems, devices, and/or methods for manufacturing castings186US 9,315,663 B2Mikro Systems, Inc. · 2016
- Investment casting utilizing patterns produced by stereolithography139US 4,844,144 ADeSoto, Inc. · 1989
- Laser machining of ceramic cores136US 5,465,780 AAlliedSignal Inc. · 1995
- High effectiveness cooled turbine vane or blade129US 6,974,308 B2Honeywell International Inc. · 2005
- Investment casting using core with integral wall thickness control means122US 5,296,308 AHowmet Corporation · 1994