B29C 48/50
Details of extruders
B29C48/50 (Details of extruders) appears on 2,906 US grants and 2,388 published applications in this corpus.
Search patents in B29C- Granted patents
- 2,906
- Published applications
- 2,388
- Assignees
- 1,374
- Inventors
- 5,653
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 52 | 0 |
| 1977 | 46 | 0 |
| 1978 | 60 | 0 |
| 1979 | 31 | 0 |
| 1980 | 43 | 0 |
| 1981 | 30 | 0 |
| 1982 | 44 | 0 |
| 1983 | 31 | 0 |
| 1984 | 35 | 0 |
| 1985 | 33 | 0 |
| 1986 | 34 | 0 |
| 1987 | 39 | 0 |
| 1988 | 45 | 0 |
| 1989 | 57 | 0 |
| 1990 | 63 | 0 |
| 1991 | 55 | 0 |
| 1992 | 66 | 0 |
| 1993 | 56 | 0 |
| 1994 | 53 | 0 |
| 1995 | 36 | 0 |
| 1996 | 47 | 0 |
| 1997 | 54 | 0 |
| 1998 | 89 | 0 |
| 1999 | 59 | 0 |
| 2000 | 74 | 0 |
| 2001 | 83 | 17 |
| 2002 | 63 | 69 |
| 2003 | 58 | 73 |
| 2004 | 59 | 80 |
| 2005 | 38 | 88 |
| 2006 | 55 | 74 |
| 2007 | 36 | 85 |
| 2008 | 29 | 77 |
| 2009 | 40 | 84 |
| 2010 | 45 | 117 |
| 2011 | 36 | 95 |
| 2012 | 64 | 107 |
| 2013 | 53 | 121 |
| 2014 | 82 | 122 |
| 2015 | 95 | 129 |
| 2016 | 95 | 107 |
| 2017 | 89 | 113 |
| 2018 | 74 | 109 |
| 2019 | 84 | 99 |
| 2020 | 85 | 102 |
| 2021 | 74 | 91 |
| 2022 | 89 | 109 |
| 2023 | 69 | 99 |
| 2024 | 58 | 93 |
| 2025 | 79 | 76 |
| 2026 | 42 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 48/505Screws1,375
- B29C 48/76Venting , drying means667
- B29C 48/695Flow dividers564
- B29C 48/68Barrels or cylinders442
- B29C 48/69Filters or screens for the moulding material392
- B29C 48/501Extruder feed section89
- B29C 48/74Bypassing means, i.e. part of the molten material being diverted into downstream60
- B29C 48/503Extruder machines or parts thereof characterised by the material or by their26
All 9 subgroupsShow fewer
Recent patents
- Screw having a web formed undercut for an extruder or conveyor1 Sep 2026US 12,722,129 B2EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
- Device for degassing of a two-component multiphase polymer-monomer material and use thereof in a degassing extruder11 Aug 2026US 12,703,123 B2Rohm Co., Ltd.
- Screw and twin-screw assembly for use in elastomer mixture extruders and associated method for extrusion of elastomer mixtures11 Aug 2026US 12,703,137 B2Pomini Rubber & Plastics S.r.l.
- Filter device for PVC plastic melt for connection to a twin screw extruder and twin screw extruder for PVC processing21 Jul 2026US 12,686,158 B2Gneuss GmbH
- Ultrasonically assisted polymer extrusion30 Jun 2026US 12,668,011 B2
- Apparatus for degassing molten plastic material and associated method for controlling its operation8 Oct 2026US 2026/0307322 A1Gamma Meccanica S.P.A.
- Screw elements with improved mixing effect and improved heat transfer, and the use of same24 Sep 2026US 2026/0284952 A1Covestro Deutschland AG
- Extruder10 Sep 2026US 2026/0264306 A1The Japan Steel Works, Ltd.
- Liner for an extruder3 Sep 2026US 2026/0257413 A1Buhler AG
- Filter assembly3 Sep 2026US 2026/0257414 A1Maag Germany GmbH
Most cited
By later US patents
- Devices for tissue repair and methods for preparation and use thereof657US 6,280,474 B1Neucoll, Inc. · 2001
- Devices for tissue repair and methods for preparation and use thereof331US 6,083,522 ANeucoll, Inc. · 2000
- Coextrusion of multilayer articles using protective boundary layers and apparatus therefor319US 5,269,995 AThe Dow Chemical Company · 1993
- Apparatus for making multilayer optical films258US 6,783,349 B23M Innovative Properties Company · 2004
- Interfacial surface generator200US 5,094,788 AThe Dow Chemical Company · 1992