B28B 7/344
From absorbent or liquid- or gas-permeable materials
Official title: {from absorbent or liquid- or gas-permeable materials, e.g. plaster moulds in general}
B28B7/344 (From absorbent or liquid- or gas-permeable materials) appears on 43 US grants and 18 published applications in this corpus.
Search patents in B28B- Granted patents
- 43
- Published applications
- 18
- Assignees
- 30
- Inventors
- 92
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 2 |
| 2020 | 2 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressure casting of submicron ceramic particles and methods of ejection20 May 2025US 12,304,106 B2James R. Glidewell Dental Ceramics, Inc.
- Mold liner arrangement9 Jul 2024US 12,030,212 B2Vertech Hume Pty Ltd
- Pressure casting of submicron ceramic particles and methods of ejection19 Apr 2022US 11,305,457 B2James R. Glidewell Dental Ceramics, Inc.
- Method for producing a dimensionally stable concrete workpiece and dimensionally stable concrete workpiece27 Jul 2021US 11,072,089 B2Synrocks SA
- Process for manufacturing a ceramic composite material part by pressurized injection of a loaded slurry into a porous mould23 Mar 2021US 10,954,169 B2Safran Aircraft Engines
- Mould for curing a precursor by carbonation30 Jul 2026US 2026/0216916 A1Vito NV
- Plastic encased carbonaceous foam mandrel and method16 Apr 2026US 2026/0102941 A1Rtx Corporation
- Pressure casting of submicron ceramic particles and methods of ejection21 Aug 2025US 2025/0262798 A1James R. Glidewell Dental Ceramics, Inc.
- Drainage membrane for the manufacture of composite materials14 Aug 2025US 2025/0256472 A1Safran
- Rapid manufacturing process for high definition ceramic core used for investment casting applications5 Jan 2023US 2023/0001471 A1Mikro Systems, Inc.
Most cited
By later US patents
- Method of making refractory fiber products30US 4,935,178 AGeneral Signal Corporation · 1990
- Pottery plaster formulations for the manufacture of plaster molds30US 6,398,864 B1United States Gypsum Company · 2002
- Method for producing ceramics sintered article and molding method and molding apparatus to be used therefor28US 5,238,627 ANGK Insulators, Ltd. · 1993
- Fluid-release mold and the method of manufacturing the same19US 3,993,727 AWallace Murray Corporation · 1976
- Fluid-release mold and the method of manufacturing the same18US 4,413,966 AWallace Murray Corporation · 1983