B29C 33/00
Moulds or cores
Official title: Moulds or cores; Details thereof or accessories therefor
B29C33/00 (Moulds or cores) appears on 11,507 US grants and 10,275 published applications in this corpus.
Search patents in B29C- Granted patents
- 11,507
- Published applications
- 10,275
- Assignees
- 5,070
- Inventors
- 22,588
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 112 | 0 |
| 1977 | 96 | 0 |
| 1978 | 98 | 0 |
| 1979 | 70 | 0 |
| 1980 | 88 | 0 |
| 1981 | 118 | 0 |
| 1982 | 100 | 0 |
| 1983 | 95 | 0 |
| 1984 | 122 | 0 |
| 1985 | 140 | 0 |
| 1986 | 126 | 0 |
| 1987 | 132 | 0 |
| 1988 | 175 | 0 |
| 1989 | 175 | 0 |
| 1990 | 198 | 0 |
| 1991 | 203 | 0 |
| 1992 | 197 | 0 |
| 1993 | 230 | 0 |
| 1994 | 204 | 0 |
| 1995 | 195 | 0 |
| 1996 | 214 | 0 |
| 1997 | 243 | 0 |
| 1998 | 337 | 0 |
| 1999 | 215 | 0 |
| 2000 | 225 | 0 |
| 2001 | 206 | 64 |
| 2002 | 215 | 238 |
| 2003 | 209 | 321 |
| 2004 | 201 | 341 |
| 2005 | 166 | 315 |
| 2006 | 184 | 343 |
| 2007 | 166 | 320 |
| 2008 | 184 | 352 |
| 2009 | 147 | 366 |
| 2010 | 240 | 393 |
| 2011 | 236 | 398 |
| 2012 | 234 | 450 |
| 2013 | 281 | 455 |
| 2014 | 297 | 450 |
| 2015 | 341 | 481 |
| 2016 | 363 | 511 |
| 2017 | 358 | 508 |
| 2018 | 380 | 498 |
| 2019 | 413 | 527 |
| 2020 | 415 | 532 |
| 2021 | 422 | 477 |
| 2022 | 361 | 519 |
| 2023 | 398 | 408 |
| 2024 | 393 | 461 |
| 2025 | 386 | 322 |
| 2026 | 203 | 225 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 33/38Moulds or cores: characterised by the material or the manufacturing process2,800
- B29C 33/44Moulds or cores: with means for, or specially constructed to facilitate, the1,835
- B29C 33/56Coatings1,545
- B29C 33/30Mounting, exchanging or centering1,499
- B29C 33/42Moulds or cores: characterised by the shape of the moulding surface1,374
- B29C 33/02Moulds or cores: with incorporated heating or cooling means1,290
- B29C 33/20Opening, closing or clamping844
- B29C 33/12Moulds or cores: with incorporated means for positioning inserts813
All 24 subgroupsShow fewer
- B29C 33/10Moulds or cores: with incorporated venting means548
- B29C 33/34Movable465
- B29C 33/0038Moulds or cores: with sealing means or the like425
- B29C 33/0033Constructed for making articles provided with holes311
- B29C 33/76Cores298
- B29C 33/70Maintenance263
- B29C 33/0022Multi-cavity moulds253
- B29C 33/0011Thin-walled moulds239
- B29C 33/005Moulds or cores: characterised by the location of the parting line of176
- B29C 33/0061Moulds or cores: characterised by the configuration of the material feeding channel150
- B29C 33/0055Moulds or cores: with incorporated overflow cavities123
- B29C 2033/0005Moulds or cores: with transparent partsIndexing code92
- B29C 33/0077Moulds or cores: characterised by the configuration of the mould filling gate65
- B29C 33/0083Electrical or fluid connection systems therefor48
- B29C 33/0088Multi-face stack moulds37
- B29C 2033/0094Means for masking a part of the moulding surfaceIndexing code13
Recent patents
- Mold manufacturing method and mold6 Oct 2026US 12,752,462 B2Seiko Epson Corporation
- Apparatus, system, and method for manufacturing of composite structures6 Oct 2026US 12,752,463 B2University of Florida Research Foundation, Inc.
- Method and machine for belling PVC-O pipes6 Oct 2026US 12,752,475 B2Sica S.P.A.
- Clamshell shape forming systems and methods6 Oct 2026US 12,752,498 B2Goodrich Corporation
- Biaxially oriented thermoplastic polymer laminate films for luggage articles and methods of making the same6 Oct 2026US 12,752,508 B2Canco Hungary Ltd.
- Mould fitted with an improved pusher device8 Oct 2026US 2026/0307298 A1
- Melt-out mandrel for composite structures8 Oct 2026US 2026/0307324 A1Kingdom First Holdings, Inc.
- Method of fabricating molds for forming eyepieces with integrated spacers8 Oct 2026US 2026/0307347 A1Magic Leap, Inc.
- End mill, method of producing microlens production mold, and apparatus of producing microlens production mold1 Oct 2026US 2026/0295689 A1Dexerials Corporation
- Pre-fabricated attachments for molds1 Oct 2026US 2026/0295904 A1Align Technology, Inc.
Most cited
By later US patents
- Mold release composition with polybutadiene and method of coating a mold core766US 5,601,641 ATSE Industries, Inc. · 1997
- Intervertebral allograft spacer747US 6,258,125 B1Synthes USA, LLC · 2001
- Microfluidic structure and process for its manufacture704US 5,376,252 APharmacia Biosensor AB · 1994
- Water based mold release compositions for making molded polyurethane foam621US 5,028,366 AAir Products and Chemicals, Inc. · 1991
- Forming structures from CAD solid models580US 6,391,251 B1Optomec Design Company · 2002