B29C 48/42
Non-identical or non-mirrored screws
B29C48/42 (Non-identical or non-mirrored screws) appears on 30 US grants and 16 published applications in this corpus.
Search patents in B29C- Granted patents
- 30
- Published applications
- 16
- Assignees
- 16
- Inventors
- 52
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 4 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 4 |
| 2014 | 0 | 1 |
| 2015 | 4 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Intermittent extrusion system and extrusion device19 May 2026US 12,629,877 B2Wuyi University
- Mixing device in the screw antechamber of a twin-screw extruder30 Aug 2022US 11,426,701 B2
- Integrated single and twin screw extruder13 Nov 2018US 10,124,526 B2King Abdulaziz City for Science and Technology
- Integrated single and twin screw extruder25 Apr 2017US 9,630,345 B2King Abdulaziz City for Science and Technology
- Device for processing material by mixing and/or plasticating24 May 2016US 9,346,190 B2
- Intermittent extrusion system and extrusion device2 Oct 2025US 2025/0303626 A1Wuyi University
- Supercritical fluid-assisted polymer extrusion foaming device17 Apr 2025US 2025/0121548 A1Atlantic Global Enterprises, Inc.
- Apparatus and method for the production of foamed polymeric material28 Mar 2024US 2024/0100755 A1FAP S.r.l.
- Mixing device in the screw antechamber of a twin-screw extruder5 Sep 2019US 2019/0270056 A1
- A co-rotating self-cleaning two screw extruder with an internal baffle19 Oct 2017US 2017/0296989 A1Guangdong Industry Technical College
Most cited
By later US patents
- High efficiency extruder33US 6,062,719 AThe Dow Chemical Company · 2000
- Extrusion process for mixtures of elastomer particles and resin particles27US 3,984,509 AJohnson & Johnson · 1976
- Apparatus for removing liquids from solids26US 5,151,026 AWerner & Pfleiderer · 1992
- Extruder of the degassing and modification type16US 4,029,300 AThe Japan Steel Works, Ltd. · 1977
- Extruder with blow head15US 4,021,170 AHoechst Aktiengesellschaft · 1977