B29C 45/16
Making multilayered or multicoloured articles
Official title: Making multilayered or multicoloured articles {(B29C45/0062 takes precedence; feeding colouring materials into the injection unit B29C45/1816)}
B29C45/16 (Making multilayered or multicoloured articles) appears on 3,613 US grants and 4,044 published applications in this corpus.
Search patents in B29C- Granted patents
- 3,613
- Published applications
- 4,044
- Assignees
- 2,010
- Inventors
- 7,511
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 20 | 0 |
| 1978 | 18 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 14 | 0 |
| 1982 | 9 | 0 |
| 1983 | 15 | 0 |
| 1984 | 16 | 0 |
| 1985 | 23 | 0 |
| 1986 | 9 | 0 |
| 1987 | 16 | 0 |
| 1988 | 29 | 0 |
| 1989 | 20 | 0 |
| 1990 | 25 | 0 |
| 1991 | 38 | 0 |
| 1992 | 37 | 0 |
| 1993 | 30 | 0 |
| 1994 | 30 | 0 |
| 1995 | 36 | 0 |
| 1996 | 35 | 0 |
| 1997 | 35 | 0 |
| 1998 | 66 | 0 |
| 1999 | 72 | 0 |
| 2000 | 84 | 0 |
| 2001 | 89 | 28 |
| 2002 | 84 | 95 |
| 2003 | 74 | 143 |
| 2004 | 99 | 141 |
| 2005 | 70 | 145 |
| 2006 | 75 | 179 |
| 2007 | 73 | 146 |
| 2008 | 68 | 190 |
| 2009 | 62 | 161 |
| 2010 | 123 | 163 |
| 2011 | 108 | 165 |
| 2012 | 93 | 159 |
| 2013 | 108 | 162 |
| 2014 | 128 | 195 |
| 2015 | 141 | 234 |
| 2016 | 150 | 214 |
| 2017 | 143 | 206 |
| 2018 | 170 | 214 |
| 2019 | 174 | 197 |
| 2020 | 173 | 186 |
| 2021 | 138 | 164 |
| 2022 | 134 | 175 |
| 2023 | 121 | 115 |
| 2024 | 127 | 107 |
| 2025 | 118 | 100 |
| 2026 | 61 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 45/1671With an insert960
- B29C 45/1676Using a soft material and a rigid material684
- B29C 45/1615The materials being injected at different moulding stations525
- B29C 45/1642Having a "sandwich" structure408
- B29C 45/1657Using means for adhering or bonding the layers or parts to each324
- B29C 45/1635Using displaceable mould parts291
- B29C 45/1603Multi-way nozzles specially adapted therefor257
- B29C 45/1679Applying surface layers onto injection-moulded substrates inside the mould cavity178
All 25 subgroupsShow fewer
- B29C 2045/1601The injected materials not being adhered or bonded to each otherIndexing code119
- B29C 45/164The moulding materials being injected simultaneously102
- B29C 45/1684Injecting parison-like articles90
- B29C 45/1675Using exchangeable mould halves88
- B29C 2045/1682Preventing defectsIndexing code58
- B29C 45/1634With a non-uniform dispersion of the moulding material in the article46
- B29C 2045/1687Preventing leakage of second injected material from the mould cavityIndexing code41
- B29C 2045/167Injecting the second layer through the first layerIndexing code40
- B29C 2045/1681One layer penetrating at one or more areas through another layerIndexing code36
- B29C 2045/1692One layer comprising fibresIndexing code33
- B29C 2045/169Injecting electrical circuitsIndexing code31
- B29C 2045/1685Mounting of the additional injection unitIndexing code30
- B29C 2045/1693Shaping the first molding material before injecting the second molding materialIndexing code30
- B29C 2045/1698Multicoloured articles moulded in one stepIndexing code24
- B29C 2045/1696Injecting metallic layers and plastic material layersIndexing code19
- B29C 2045/1689Injecting layers having identical injection cycle timesIndexing code3
- B29C 2045/1695Injecting ceramic powder layers and plastic material layersIndexing code2
Recent patents
- Injection molding method6 Oct 2026US 12,752,467 B2King Steel Machinery Co., Ltd.
- Method of making an ultrasonic surgical instrument assembly8 Sep 2026US 12,727,904 B1Stryker Corporation
- In-mold coat injection device8 Sep 2026US 12,728,575 B2Seikoh Giken Co., Ltd.
- Tool insert for a primary shaping tool and primary shaping tool equipped with said tool insert25 Aug 2026US 12,715,161 B2Heraeus Amloy Technologies GmbH
- Method for preparing an enhanced auxetic composite material (EACM)18 Aug 2026US 12,708,167 B2Honeywell Safety Products USA, Inc.
- Method for manufacturing a toilet seat8 Oct 2026US 2026/0307309 A1Geberit International AG
- Multi-appearance overmolded vehicle component8 Oct 2026US 2026/0307311 A1
- Rotor for a fluid pump, and method and mold for manufacturing same24 Sep 2026US 2026/0286968 A1Ecp Entwicklungsgesellschaft Mbh
- Flexible Structural Reinforcement17 Sep 2026US 2026/0273813 A1Zephyros, Inc.
- Method for manufacturing a head housing of a humanoid robot17 Sep 2026US 2026/0273817 A1
Most cited
By later US patents
- Sealing lip device for a respiratory mask, respiratory mask and a method and a mould for producing the same309US 7,827,990 B1MAP Medizin-Technologie GmbH · 2010
- Desiccant entrained polymer287US 5,911,937 ACapitol Specialty Plastics, Inc. · 1999
- Method of operating a two-shot injection-molding machine258US 4,444,711 AHusky Injection Molding Systems Ltd. · 1984
- Two-shot injection molding225US 4,460,534 AInternational Business Machines Corporation · 1984
- Watertight body for accommodating a photographic camera218US 5,832,312 AEastman Kodak Company · 1998