B29C 44/04
Consisting of at least two parts of chemically or physically different materials
Official title: consisting of at least two parts of chemically or physically different materials, e.g. having different densities
B29C44/04 (Consisting of at least two parts of chemically or physically different materials) appears on 853 US grants and 837 published applications in this corpus.
Search patents in B29C- Granted patents
- 853
- Published applications
- 837
- Assignees
- 562
- Inventors
- 1,973
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 8 | 0 |
| 1978 | 12 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 12 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 18 | 0 |
| 1991 | 15 | 0 |
| 1992 | 18 | 0 |
| 1993 | 16 | 0 |
| 1994 | 15 | 0 |
| 1995 | 10 | 0 |
| 1996 | 8 | 0 |
| 1997 | 28 | 0 |
| 1998 | 31 | 0 |
| 1999 | 27 | 0 |
| 2000 | 24 | 0 |
| 2001 | 19 | 10 |
| 2002 | 22 | 38 |
| 2003 | 23 | 35 |
| 2004 | 21 | 37 |
| 2005 | 17 | 31 |
| 2006 | 21 | 38 |
| 2007 | 14 | 35 |
| 2008 | 11 | 20 |
| 2009 | 8 | 31 |
| 2010 | 12 | 26 |
| 2011 | 15 | 39 |
| 2012 | 14 | 32 |
| 2013 | 20 | 36 |
| 2014 | 16 | 30 |
| 2015 | 21 | 38 |
| 2016 | 25 | 37 |
| 2017 | 24 | 26 |
| 2018 | 28 | 46 |
| 2019 | 33 | 35 |
| 2020 | 21 | 39 |
| 2021 | 23 | 35 |
| 2022 | 21 | 39 |
| 2023 | 25 | 36 |
| 2024 | 31 | 27 |
| 2025 | 26 | 24 |
| 2026 | 17 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 44/0461By having different chemical compositions in different places243
- B29C 44/06Making multilayered articles197
- B29C 44/0407By regulating the temperature of the mould or parts thereof125
- B29C 44/0415By regulating the pressure of the material during or after filling of75
- B29C 44/0492Devices for feeding the different materials48
- B29C 44/0446By increasing the density locally by compressing part of the foam while46
- B29C 44/0423By density separation19
- B29C 44/0484By having different solubility of the foaming agent9
All 9 subgroupsShow fewer
Recent patents
- Flat lightweight member and method of producing the same6 Oct 2026US 12,752,496 B2Toray Industries, Inc.
- System and method for additive manufacturing of an object with foam infill material29 Sep 2026US 12,746,719 B2Accenture Global Solutions Limited
- Injection physical foaming inner boot and method of manufacturing inner boot by injection physical foaming18 Aug 2026US 12,708,171 B2Feng Tay Enterprises Co., Ltd.
- Foamed articles and methods of making the same11 Aug 2026US 12,703,130 B2NIKE, Inc.
- Injection molding system and method11 Aug 2026US 12,703,133 B2King Steel Machinery Co., Ltd.
- Tissue repair device and molding process8 Oct 2026US 2026/0306718 A1Dsm IP Assets B.V.
- Molded body, automotive component, and method for producing molded body24 Sep 2026US 2026/0285407 A1Resonac Corporation
- Multi-shot injection molded method and product17 Sep 2026US 2026/0273809 A1Zephyros, Inc.
- Assembly of a floor covering panel of a motor vehicle3 Sep 2026US 2026/0257733 A1Treves Products, Services & Innovation
- Anisotropic thin foamed polyethylene sheet and applications thereof20 Aug 2026US 2026/0241618 A1MuCell Extrusion, LLC
Most cited
By later US patents
- Thermally insulated VIP sandwich shipper and method of making same244US 9,272,475 B2Sonoco Development, Inc. · 2016
- Formed resilient orthopaedic support226US 5,334,135 A1994
- Formed resilient orthopaedic device216US 5,695,452 A1997
- Starch-based compositions having uniformly dispersed fibers used to manufacture high strength articles having a fiber-reinforced, starch-bound cellular matrix165US 5,679,145 AE. Khashoggi Industries · 1997
- Article of footwear incorporating foam-filled elements and methods for manufacturing the foam-filled elements147US 7,941,941 B2NIKE, Inc. · 2011