B29C 44/38
Into a closed space, i.e. to make articles of definite length
Official title: into a closed space, i.e. to make articles of definite length {(B29C44/365 and B29C44/367 take precedence)}
B29C44/38 (Into a closed space, i.e. to make articles of definite length) appears on 873 US grants and 909 published applications in this corpus.
Search patents in B29C- Granted patents
- 873
- Published applications
- 909
- Assignees
- 563
- Inventors
- 2,008
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 15 | 0 |
| 1978 | 17 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 20 | 0 |
| 1982 | 7 | 0 |
| 1983 | 10 | 0 |
| 1984 | 13 | 0 |
| 1985 | 14 | 0 |
| 1986 | 13 | 0 |
| 1987 | 11 | 0 |
| 1988 | 14 | 0 |
| 1989 | 17 | 0 |
| 1990 | 10 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 14 | 0 |
| 1994 | 14 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 12 | 0 |
| 1998 | 13 | 0 |
| 1999 | 6 | 0 |
| 2000 | 14 | 0 |
| 2001 | 13 | 3 |
| 2002 | 9 | 12 |
| 2003 | 13 | 16 |
| 2004 | 4 | 15 |
| 2005 | 11 | 17 |
| 2006 | 6 | 15 |
| 2007 | 8 | 20 |
| 2008 | 5 | 23 |
| 2009 | 6 | 12 |
| 2010 | 4 | 14 |
| 2011 | 10 | 10 |
| 2012 | 10 | 18 |
| 2013 | 7 | 23 |
| 2014 | 16 | 32 |
| 2015 | 16 | 31 |
| 2016 | 20 | 30 |
| 2017 | 19 | 44 |
| 2018 | 24 | 46 |
| 2019 | 35 | 71 |
| 2020 | 37 | 86 |
| 2021 | 36 | 76 |
| 2022 | 50 | 61 |
| 2023 | 59 | 70 |
| 2024 | 53 | 73 |
| 2025 | 53 | 59 |
| 2026 | 36 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 44/44In solid form363
- B29C 44/42Using pressure difference324
- B29C 44/385Using manifolds or channels directing the flow in the mould90
- B29C 44/388Into moving moulds30
- B29C 44/40By gravity17
- B29C 44/383Using spreading devices mounted in the mould, in front of the feed14
- B29C 44/381Spreading the foamable material in the mould by pressing the mould halves3
Recent patents
- Tool, tool system and method for the production of particle foam parts1 Sep 2026US 12,722,329 B2Kurtz GmbH
- Method for the production of cellular plastic particles25 Aug 2026US 12,715,162 B2FOX Velution GmbH
- Footwear mold assembly for injection-molding25 Aug 2026US 12,715,971 B2NIKE, Inc.
- Injection moulding process for the preparation of a foamed article with improved surface quality28 Jul 2026US 12,691,612 B2Sabic Global Technologies B.V.
- Particle foams30 Jun 2026US 12,668,676 B2BASF SE
- Support element for the human body comprising a recycled material and method for its production8 Oct 2026US 2026/0307752 A1Selle Royal Group S.P.A.
- Method for vaporless processing of expandable for expanded particle foam material20 Aug 2026US 2026/0241617 A1FOX Velution GmbH
- Syntactic foam containing reinforced large inclusions20 Aug 2026US 2026/0242559 A1The Boeing Company
- Process for producing a single-material particle-foam component30 Jul 2026US 2026/0217926 A1Evonik Operations GmbH
- Method for coating of polystyrene particles30 Jul 2026US 2026/0217934 A1Ioi Oleo GmbH
Most cited
By later US patents
- Method for the production of molded bodies from polymer foam particles985US 6,358,459 B1Fraunhofer-Gesellschaft zur Forderung der Angewandten ForschungE.V. · 2002
- Microcellular closed cell foams and their method of manufacture215US 4,473,665 AMassachusetts Institute of Technology · 1984
- Method of reinforcing a structural member130US 4,610,836 AGeneral Motors Corporation · 1986
- Self-sealing partition124US 6,103,341 AL&L Products, Inc. · 2000
- Modular structure for building panels and methods of making and using same108US 7,127,865 B22006