B22C 9/101
Permanent cores
Official title: {Permanent cores}
B22C9/101 (Permanent cores) appears on 76 US grants and 77 published applications in this corpus.
Search patents in B22C- Granted patents
- 76
- Published applications
- 77
- Assignees
- 59
- Inventors
- 199
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 3 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 5 |
| 2012 | 3 | 4 |
| 2013 | 1 | 5 |
| 2014 | 3 | 2 |
| 2015 | 1 | 1 |
| 2016 | 7 | 21 |
| 2017 | 6 | 8 |
| 2018 | 9 | 5 |
| 2019 | 7 | 5 |
| 2020 | 3 | 4 |
| 2021 | 5 | 5 |
| 2022 | 3 | 0 |
| 2023 | 4 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Investment casting process for hollow components3 Jun 2025US 12,318,837 B2Raytheon Technologies Corporation
- Method to increase local cooling rate and improve material properties in a low-pressure sand-casting head21 May 2024US 11,986,879 B2GM Global Technology Operations LLC
- Repair of core positioning features in cast components17 Oct 2023US 11,786,962 B2Rtx Corporation
- Ceramic coating for foundry core12 Sep 2023US 11,752,541 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Casting mold for casting components and method for the production thereof28 Mar 2023US 11,612,930 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Airless spray nozzle for fan shaped spraying17 Sep 2026US 2026/0273547 A1
- Additive steel alloys for contoured cooling inserts, and methods thereof11 Jun 2026US 2026/0158546 A1Tesla, Inc.
- Method to increase local cooling rate and improve material properties in a low-pressure sand-casting head19 Oct 2023US 2023/0330744 A1GM Global Technology Operations LLC
- Repair of core positioning features in cast components28 Oct 2021US 2021/0331232 A1Raytheon Technologies Corporation
- Ceramic coating for foundry core30 Sep 2021US 2021/0299743 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
Most cited
By later US patents
- Method and apparatus for manufacturing and forming engine induction passage venturi45US 4,318,214 AColt Industries Operating Corp. · 1982
- Systems and methods for implementing robust gearbox housings17US 10,487,934 B2California Institute of Technology · 2019
- Mold inserts for injection moldings16US 5,744,173 AAeroquip Corporation · 1998
- Mold core for investment casting, process for preparing the same and process for preparing mold for investment casting having therewithin said mold core14US 4,919,193 A1990
- Method and assembly for forming components having internal passages using a lattice structure13US 9,579,714 B1General Electric Company · 2017