B28B 7/34
Moulds, cores, or mandrels of special material
Official title: Moulds, cores, or mandrels of special material, e.g. destructible materials (for slip casting B28B1/26)
B28B7/34 (Moulds, cores, or mandrels of special material) appears on 549 US grants and 542 published applications in this corpus.
Search patents in B28B- Granted patents
- 549
- Published applications
- 542
- Assignees
- 346
- Inventors
- 1,190
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 1 | 0 |
| 1989 | 13 | 0 |
| 1990 | 15 | 0 |
| 1991 | 18 | 0 |
| 1992 | 14 | 0 |
| 1993 | 19 | 0 |
| 1994 | 8 | 0 |
| 1995 | 12 | 0 |
| 1996 | 9 | 0 |
| 1997 | 13 | 0 |
| 1998 | 9 | 0 |
| 1999 | 15 | 0 |
| 2000 | 6 | 0 |
| 2001 | 14 | 4 |
| 2002 | 11 | 11 |
| 2003 | 7 | 16 |
| 2004 | 10 | 17 |
| 2005 | 4 | 29 |
| 2006 | 7 | 19 |
| 2007 | 9 | 28 |
| 2008 | 5 | 12 |
| 2009 | 9 | 16 |
| 2010 | 16 | 20 |
| 2011 | 10 | 23 |
| 2012 | 12 | 12 |
| 2013 | 12 | 20 |
| 2014 | 17 | 10 |
| 2015 | 10 | 22 |
| 2016 | 12 | 35 |
| 2017 | 11 | 23 |
| 2018 | 13 | 29 |
| 2019 | 21 | 34 |
| 2020 | 20 | 24 |
| 2021 | 30 | 27 |
| 2022 | 11 | 30 |
| 2023 | 14 | 17 |
| 2024 | 22 | 25 |
| 2025 | 18 | 22 |
| 2026 | 9 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Formulations for additive manufacturing of three-dimensional objects containing sinterable materials4 Aug 2026US 12,697,750 B2Tritone Technologies Ltd.
- Needled ceramic matrix composite cooling passages4 Aug 2026US 12,698,718 B2Rtx Corporation
- Moulding tray for manufacturing slabs made of agglomerate material, method for realizing such moulding tray and method for manufacturing slabs made of agglomerate material30 Jun 2026US 12,667,997 B2
- Mold and construction panel manufacturing method using same16 Jun 2026US 12,654,357 B2University of Seoul Industry Cooperation Foundation
- Concrete garden bed mold2 Jun 2026US 12,643,260 B2
- Targeted Ceramic Casting Core Inhomogeneity6 Aug 2026US 2026/0225282 A1Rtx Corporation
- Method for inserting ceramic green compacts, method for producing cip green compacts, method for producing sintered ceramic compacts, and method for producing ceramic ball material6 Aug 2026US 2026/0225960 A1Niterra Materials Co., Ltd.
- Mould for curing a precursor by carbonation30 Jul 2026US 2026/0216916 A1Vito NV
- Method for the manufacture of formwork, lost formwork and reinforcement for freeform concrete16 Jul 2026US 2026/0200130 A1
- Method for producing a ceramic component9 Jul 2026US 2026/0192490 A1Manufacture D'Horlogerie Audemars Piguet SA
Most cited
By later US patents
- Method for producing granulated material182US 6,210,625 B1Mikuni Corporation · 2001
- Method of fabricating three dimensional printed part156US 8,444,903 B2The Boeing Company · 2013
- Method for forming an irregular surface block142US 5,078,940 A1992
- Methods and apparatus for computer-assisted spray foam fabrication129US 9,566,742 B2Massachusetts Institute of Technology · 2017
- Methods and apparatus for computer-assisted spray foam fabrication120US 10,189,187 B2Massachusetts Institute of Technology · 2019