B29C 48/41
Intermeshing counter-rotating screws
B29C48/41 (Intermeshing counter-rotating screws) appears on 158 US grants and 179 published applications in this corpus.
Search patents in B29C- Granted patents
- 158
- Published applications
- 179
- Assignees
- 140
- Inventors
- 462
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 9 |
| 2003 | 2 | 5 |
| 2004 | 9 | 5 |
| 2005 | 3 | 10 |
| 2006 | 3 | 2 |
| 2007 | 2 | 2 |
| 2008 | 2 | 4 |
| 2009 | 4 | 13 |
| 2010 | 1 | 10 |
| 2011 | 1 | 12 |
| 2012 | 6 | 8 |
| 2013 | 5 | 8 |
| 2014 | 4 | 13 |
| 2015 | 11 | 12 |
| 2016 | 6 | 13 |
| 2017 | 9 | 7 |
| 2018 | 8 | 8 |
| 2019 | 8 | 4 |
| 2020 | 3 | 6 |
| 2021 | 3 | 7 |
| 2022 | 7 | 1 |
| 2023 | 3 | 9 |
| 2024 | 1 | 4 |
| 2025 | 4 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Intermittent extrusion system and extrusion device19 May 2026US 12,629,877 B2Wuyi University
- Method for continuously manufacturing UHMWPE products25 Nov 2025US 12,479,149 B2Tekalen Holding Verwaltungs GmbH
- Screw machine with a rotatable filter in a deaeration port4 Nov 2025US 12,459,185 B2Shibaura Machine Co., Ltd.
- Resin composition30 Sep 2025US 12,428,545 B2Plantic Technologies Ltd.
- Miniaturized volumetric extruder using twin conical screws, each provided with a thread, the pitch of which increases to maintain a constant displacement23 Jul 2026US 2026/0208423 A1Compagnie Generale Des Etablissements Michelin
- Silicone manufacturing9 Jul 2026US 2026/0193416 A1Dow Global Technologies LLC
- Biaxial continuous kneading extrusion device19 Feb 2026US 2026/0048368 A1CTE Co., Ltd.
- Intermittent extrusion system and extrusion device2 Oct 2025US 2025/0303626 A1Wuyi University
- Mixing and kneading machine5 Jun 2025US 2025/0178263 A1Buss AG
Most cited
By later US patents
- Extruded synthetic wood composition and method for making same236US 5,516,472 AStrandex Corporation · 1996
- Fiber reinforced thermoplastic resin structure, process for production of same, and extruder for production of same148US 5,679,456 AToray Industries, Inc. · 1997
- Fiber reinforced thermoplastic resin structure, process for production of same, and extruder for production of same126US 5,824,410 AToray Industries, Inc. · 1998
- Method of making panels67US 4,915,764 A1990
- Method of recycling mixed streams of ewaste (WEEE)53US 7,902,262 B2Close the Loop Technologies Pty Ltd. · 2011