B29C 44/20
Shaping by internal pressure generated in the material: for articles of indefinite
Official title: for articles of indefinite length
B29C44/20 (Shaping by internal pressure generated in the material: for articles of indefinite) appears on 821 US grants and 674 published applications in this corpus.
Search patents in B29C- Granted patents
- 821
- Published applications
- 674
- Assignees
- 522
- Inventors
- 1,816
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 32 | 0 |
| 1977 | 22 | 0 |
| 1978 | 27 | 0 |
| 1979 | 17 | 0 |
| 1980 | 21 | 0 |
| 1981 | 18 | 0 |
| 1982 | 19 | 0 |
| 1983 | 16 | 0 |
| 1984 | 12 | 0 |
| 1985 | 15 | 0 |
| 1986 | 17 | 0 |
| 1987 | 8 | 0 |
| 1988 | 14 | 0 |
| 1989 | 16 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 14 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 12 | 0 |
| 1996 | 17 | 0 |
| 1997 | 15 | 0 |
| 1998 | 15 | 0 |
| 1999 | 12 | 0 |
| 2000 | 14 | 0 |
| 2001 | 25 | 8 |
| 2002 | 12 | 26 |
| 2003 | 14 | 19 |
| 2004 | 12 | 20 |
| 2005 | 9 | 32 |
| 2006 | 6 | 24 |
| 2007 | 12 | 25 |
| 2008 | 8 | 18 |
| 2009 | 4 | 27 |
| 2010 | 14 | 34 |
| 2011 | 8 | 27 |
| 2012 | 15 | 26 |
| 2013 | 25 | 30 |
| 2014 | 17 | 25 |
| 2015 | 13 | 30 |
| 2016 | 17 | 42 |
| 2017 | 18 | 29 |
| 2018 | 31 | 35 |
| 2019 | 42 | 37 |
| 2020 | 22 | 33 |
| 2021 | 25 | 29 |
| 2022 | 11 | 33 |
| 2023 | 28 | 22 |
| 2024 | 22 | 18 |
| 2025 | 17 | 20 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 44/32Incorporating or moulding on preformed parts387
- B29C 44/22Consisting of at least two parts of chemically or physically different materials241
- B29C 44/30Expanding the moulding material between endless belts or rollers148
- B29C 44/28Expanding the moulding material on continuous moving surfaces without restricting the upwards45
- B29C 44/26Using several expanding steps28
- B29C 44/206Using expandable particles or beads as starting material25
- B29C 44/203Expanding the moulding material in a vertical channel9
Recent patents
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- Biodegradable polyurethane foam slabstock and method of production28 Jul 2026US 12,692,389 B1
- Panel member production line30 Jun 2026US 12,668,003 B2Dow Global Technologies LLC
- Surface finish manufacturing system and process12 May 2026US 12,623,391 B2Eva Last Hong Kong Limited
- Core and shell composite structural member14 Apr 2026US 12,600,108 B2
- Method for producing corrugated laminated panels24 Sep 2026US 2026/0284941 A1Dow Global Technologies LLC
- Non-perforated artificial turf with porous backing and methods of manufacture thereof24 Sep 2026US 2026/0286624 A1Spinturf, LLC
- Recycled polyurethane foam composition for automotive interior materials and polyurethane foam made therefrom17 Sep 2026US 2026/0273810 A1Foam Works Co., Ltd.
- Core and shell composite structural member17 Sep 2026US 2026/0273890 A1Tundra Composites, LLC
- Constrained-type vibration-damping metal sheet having foam pores and method for manufacturing same23 Apr 2026US 2026/0109135 A1Posco
Most cited
By later US patents
- Thermal insulating material and method of manufacturing same118US 5,500,287 AInnovation Associates, Inc. · 1996
- Foam-filled extruded decking plank and decking attachment system112US 5,660,016 A1997
- Method and apparatus for microcellular polymer extrusion107US 6,284,810 B1Trexel, Inc. · 2001
- Method and apparatus for microcellular polymer extrusion105US 6,884,377 B1Trexel, Inc. · 2005
- Foamed thermoplastic polymer and wood fiber profile and member100US 6,054,207 AAndersen Corporation · 2000