B29C 48/74
Bypassing means, i.e. part of the molten material being diverted into downstream
Official title: Bypassing means, i.e. part of the molten material being diverted into downstream stages of the extruder
B29C48/74 (Bypassing means, i.e. part of the molten material being diverted into downstream) appears on 60 US grants and 27 published applications in this corpus.
Search patents in B29C- Granted patents
- 60
- Published applications
- 27
- Assignees
- 44
- Inventors
- 103
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 2 | 0 |
| 2012 | 2 | 2 |
| 2013 | 1 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 4 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 3 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for producing fiber-reinforced composite material24 Jun 2025US 12,337,505 B2National University Corporation Kanazawa University
- Extruder screw with alternately-arranged conveyance portions and extruders and extrusion methods using the extruder screw25 Jan 2022US 11,229,889 B2Shibaura Machine Co., Ltd.
- Process and device for introducing additive materials in a receptacle at the area of highest pressure17 Dec 2019US 10,507,594 B2EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
- Apparatus for extruding a coating around an electric conductor21 Aug 2018US 10,056,173 B2Samp S.P.A. Con Unico Socio
- Forming different plastic products from a single melt6 Mar 2018US 9,908,276 B2Univation Technologies, LLC
- Method for producing carbon fiber composite material20 Nov 2025US 2025/0353225 A1Shibaura Machine Co., Ltd.
- Supercritical fluid-assisted polymer extrusion foaming device17 Apr 2025US 2025/0121548 A1Atlantic Global Enterprises, Inc.
- Device and method for processing plastic material3 Oct 2024US 2024/0326291 A1Coperion GmbH
- Device and method for processing plastics material3 Oct 2024US 2024/0326312 A1Coperion GmbH
- Method for producing fiber-reinforced composite material1 Feb 2024US 2024/0033974 A1National University Corporation Kanazawa University
Most cited
By later US patents
- Injection molding of polymeric material85US 6,884,823 B1Trexel, Inc. · 2005
- Process and apparatus for the direct and continuous modification of polymer melts36US 5,376,702 AEMS-Inventa AG · 1994
- Construction of thermoplastic tubes with tubular ribs by helical winding upon a mandrel34US 4,826,423 AChevron Research Company · 1989
- Process for extruding a partially foamed thermoplastic product33US 3,956,438 ABarmag Barmer Maschinenfabrik AG · 1976
- Rapid change die assembly33US 5,067,885 AGenCorp Inc. · 1991