B28B 7/346
Manufacture of moulds
Official title: {Manufacture of moulds}
B28B7/346 (Manufacture of moulds) appears on 221 US grants and 280 published applications in this corpus.
Search patents in B28B- Granted patents
- 221
- Published applications
- 280
- Assignees
- 161
- Inventors
- 528
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 2 | 7 |
| 2003 | 3 | 7 |
| 2004 | 4 | 8 |
| 2005 | 3 | 9 |
| 2006 | 5 | 8 |
| 2007 | 3 | 19 |
| 2008 | 1 | 6 |
| 2009 | 6 | 6 |
| 2010 | 6 | 11 |
| 2011 | 2 | 13 |
| 2012 | 9 | 3 |
| 2013 | 6 | 7 |
| 2014 | 8 | 5 |
| 2015 | 4 | 9 |
| 2016 | 6 | 10 |
| 2017 | 6 | 16 |
| 2018 | 3 | 20 |
| 2019 | 13 | 19 |
| 2020 | 9 | 13 |
| 2021 | 17 | 17 |
| 2022 | 7 | 18 |
| 2023 | 8 | 12 |
| 2024 | 17 | 18 |
| 2025 | 12 | 10 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Formulations for additive manufacturing of three-dimensional objects containing sinterable materials4 Aug 2026US 12,697,750 B2Tritone Technologies Ltd.
- 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
- Targeted ceramic casting core inhomogeneity12 May 2026US 12,623,373 B2Rtx Corporation
- Method and casting mold, in particular for use in cold casting methods21 Apr 2026US 12,605,865 B2Voxeljet AG
- Targeted Ceramic Casting Core Inhomogeneity6 Aug 2026US 2026/0225282 A1Rtx Corporation
- Method for the manufacture of formwork, lost formwork and reinforcement for freeform concrete16 Jul 2026US 2026/0200130 A1
- Plastic encased carbonaceous foam mandrel and method16 Apr 2026US 2026/0102941 A1Rtx Corporation
- Printable concrete structure mold for concrete structures16 Apr 2026US 2026/0102942 A11Print LLC
- Method and connector structure for concrete product molds5 Mar 2026US 2026/0061663 A1Columbia Machine, Inc.
Most cited
By later US patents
- Method of fabricating three dimensional printed part156US 8,444,903 B2The Boeing Company · 2013
- 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
- Paving stone, process for manufacturing same and device for carrying out the manufacturing process99US 4,627,764 A1986
- Decorative mold for forming concrete surface with uneven pattern96US 5,651,912 AJsp Corporation · 1997