B28B 7/00
Moulds
Official title: Moulds; Cores; Mandrels (specially adapted for the production of the tubular articles B28B21/00; {for casting metals B22C9/00; moulds for plastic materials in general B29C33/00; falsework, forms or shutterings for forming buildings or parts thereof in situ E04G9/00 - E04G15/00})
B28B7/00 (Moulds) appears on 2,338 US grants and 1,969 published applications in this corpus.
Search patents in B28B- Granted patents
- 2,338
- Published applications
- 1,969
- Assignees
- 1,219
- Inventors
- 3,963
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 51 | 0 |
| 1977 | 45 | 0 |
| 1978 | 62 | 0 |
| 1979 | 40 | 0 |
| 1980 | 29 | 0 |
| 1981 | 35 | 0 |
| 1982 | 27 | 0 |
| 1983 | 25 | 0 |
| 1984 | 19 | 0 |
| 1985 | 27 | 0 |
| 1986 | 24 | 0 |
| 1987 | 29 | 0 |
| 1988 | 16 | 0 |
| 1989 | 37 | 0 |
| 1990 | 45 | 0 |
| 1991 | 35 | 0 |
| 1992 | 60 | 0 |
| 1993 | 47 | 0 |
| 1994 | 37 | 0 |
| 1995 | 38 | 0 |
| 1996 | 48 | 0 |
| 1997 | 64 | 0 |
| 1998 | 73 | 0 |
| 1999 | 52 | 0 |
| 2000 | 42 | 0 |
| 2001 | 57 | 17 |
| 2002 | 38 | 54 |
| 2003 | 39 | 63 |
| 2004 | 51 | 79 |
| 2005 | 27 | 85 |
| 2006 | 39 | 72 |
| 2007 | 37 | 77 |
| 2008 | 25 | 79 |
| 2009 | 23 | 82 |
| 2010 | 50 | 98 |
| 2011 | 45 | 66 |
| 2012 | 56 | 82 |
| 2013 | 54 | 78 |
| 2014 | 69 | 70 |
| 2015 | 52 | 93 |
| 2016 | 53 | 98 |
| 2017 | 58 | 84 |
| 2018 | 67 | 86 |
| 2019 | 77 | 101 |
| 2020 | 76 | 90 |
| 2021 | 69 | 83 |
| 2022 | 44 | 83 |
| 2023 | 50 | 65 |
| 2024 | 71 | 66 |
| 2025 | 73 | 67 |
| 2026 | 31 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B28B 7/34Moulds, cores, or mandrels of special material549
- B28B 7/0064Moulds characterised by special surfaces for producing a desired surface of a417
- B28B 7/16Moulds for making shaped articles with cavities or holes open to the336
- B28B 7/40Moulds: characterised by means for modifying the properties of the moulding material305
- B28B 7/0029Moulds or moulding surfaces not covered by b28b7/0058 - b28b7/36 and b28b7/40288
- B28B 7/0002Auxiliary parts or elements of the mould244
- B28B 7/28Cores216
- B28B 7/36Linings or coatings210
All 24 subgroupsShow fewer
- B28B 7/02Moulds with adjustable parts specially for modifying at will the dimensions or182
- B28B 7/24Unitary mould structures with a plurality of moulding spaces176
- B28B 7/0097Press moulds145
- B28B 7/38Treating surfaces of moulds, cores, or mandrels to prevent sticking129
- B28B 7/22Moulds for making units for prefabricated buildings , i.e. units each comprising110
- B28B 7/10Moulds with means incorporated therein, or carried thereby, for ejecting or detaching92
- B28B 7/08Moulds provided with means for tilting or inverting77
- B28B 7/06Moulds with flexible parts64
- B28B 7/20Moulds for making shaped articles with undercut recesses52
- B28B 7/0088Moulds in which at least one surface of the moulded article serves39
- B28B 7/0061Moulds, cores or mandrels specially adapted for mechanically working moulding surfaces during29
- B28B 7/0091Transformable moulds allowing the change of shape of an initial moulded preform25
- B28B 7/26Assemblies of separate moulds , i.e. of moulds or moulding space units25
- B28B 7/0094Moulds for concrete test samples22
- B28B 7/0058Moulds, cores or mandrels with provisions concerning the elimination of superfluous material10
- B28B 7/14Moulds with means incorporated therein, or carried thereby, for cutting the moulded5
Recent patents
- Airforming constructive system29 Sep 2026US 12,746,707 B2
- Plug, method of manufacturing plug, and member for semiconductor manufacturing apparatus8 Sep 2026US 12,733,429 B2NGK Insulators, Ltd.
- Precast concrete stairway construction method25 Aug 2026US 12,716,243 B2Easycore Co., Ltd.
- Multi-piece mandrel for building up airfoil structure18 Aug 2026US 12,709,985 B2Rtx Corporation
- Catch basin trap with collapsible outlet pipe connector and method of making a catch basin11 Aug 2026US 12,704,211 B2Decast Ltd.
- Turning device and method for turning and producing a wall element1 Oct 2026US 2026/0295899 A1EBAWE Anlagentechnik GmbH
- Multi-level segmented mandrel system and method for composite shapes with negative draft1 Oct 2026US 2026/0295900 A1Rtx Corporation
- Anchoring member for a facing panel for stabilised earth structures24 Sep 2026US 2026/0286640 A1Officine Maccaferri S.P.A.
- Systems and methods related to demolding cast products27 Aug 2026US 2026/0249515 A1Silvermine Stoneoperating Co L.L.C.
- Material preparation systems and related devices and methods of preparing cementitious materials27 Aug 2026US 2026/0250209 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Articles of manufacture and methods for manufacturing laminate structures including inorganically filled sheets312US 5,830,548 AE. Khashoggi Industries · 1998
- Synthetic molded slabs, and systems and methods related thereto206US 9,289,923 B1Cambria Company LLC · 2016
- Apparatus for fabrication of concrete brick203US 4,869,660 A1989
- Method of three dimensional printing191US 5,902,441 AZ Corporation · 1999
- Method, building structure and side-split block therefore187US 4,335,549 ADesigner Blocks, Inc. · 1982