B29C 48/682
For twin screws
Official title: {for twin screws}
B29C48/682 (For twin screws) appears on 72 US grants and 78 published applications in this corpus.
Search patents in B29C- Granted patents
- 72
- Published applications
- 78
- Assignees
- 71
- Inventors
- 217
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 0 | 6 |
| 2012 | 4 | 3 |
| 2013 | 1 | 7 |
| 2014 | 3 | 3 |
| 2015 | 4 | 2 |
| 2016 | 2 | 3 |
| 2017 | 3 | 4 |
| 2018 | 3 | 6 |
| 2019 | 2 | 6 |
| 2020 | 3 | 4 |
| 2021 | 5 | 4 |
| 2022 | 4 | 3 |
| 2023 | 3 | 3 |
| 2024 | 1 | 2 |
| 2025 | 2 | 5 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Screw machine28 Apr 2026US 12,611,810 B2Shibaura Machine Co., Ltd.
- Method of extrusion and making random extruded products11 Nov 2025US 12,465,068 B2Frito-Lay North America, Inc.
- Plasticizing unit20 May 2025US 12,304,125 B2KraussMaffei Technologies GmbH
- Starch-based multi-channel airflow unit and preparation method and application thereof27 Feb 2024US 11,911,948 B2China Tobacco Guangdong Industrial Co., Ltd.
- Extruder16 Jul 2026US 2026/0200159 A1The Japan Steel Works, Ltd.
- Polymer based composite materials with increased thermal conductivity9 Jul 2026US 2026/0193509 A1Eurotec Muhendislik Plastikleri Sanayi Ve Ticaret Anonim Sirketi
- Extruder barrel with separable liner and method of refurbishment18 Jun 2026US 2026/0166801 A1Xaloy, Inc.
- Mixing device and electrode mixing method4 Jun 2026US 2026/0151748 A1Samsung SDI.Co., Ltd.
- Extruder23 Apr 2026US 2026/0108856 A1Samsung SDI.Co., Ltd.
Most cited
By later US patents
- Short length tapered extrusion cooking device36US 5,694,833 AWenger Manufacturing, Inc. · 1997
- Process for continuously producing heat-vulcanizable silicone rubber compound35US 5,198,171 AToshiba Silicone Co., Ltd. · 1993
- Method for continuous emulsifying organopolysiloxane gums19US 5,806,975 ADow Corning Toray Silicone Co., Ltd. · 1998
- Elastomer composite with silica-containing filler and methods to produce same19US 9,096,735 B2Cabot Corporation · 2015
- Screw housing for a screw machine18US 4,028,027 AWerner & Pfleiderer · 1977