B28B 3/224
Twin screw extruders
Official title: {Twin screw extruders, e.g. double shaft extruders}
B28B3/224 (Twin screw extruders) appears on 22 US grants and 30 published applications in this corpus.
Search patents in B28B- Granted patents
- 22
- Published applications
- 30
- Assignees
- 10
- Inventors
- 56
- Latest grant
- 3 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 3 | 1 |
| 2016 | 2 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 3 |
| 2019 | 2 | 4 |
| 2020 | 1 | 2 |
| 2021 | 0 | 3 |
| 2022 | 4 | 1 |
| 2023 | 2 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Screw elements for extrusion apparatus and methods of manufacturing a honeycomb body3 Sep 2024US 12,076,903 B2Corning Incorporated
- Precision bead forming 3D print head for cementitious materials12 Sep 2023US 11,752,663 B2UT-Battelle, LLC
- Kneading elements for extrusion apparatus and methods of manufacturing a honeycomb body7 Feb 2023US 11,571,832 B2Corning Incorporated
- Stone-plastic floor and method of preparing the same2 Aug 2022US 11,400,617 B2Jiangsu Bbl Home Technology Company Limited
- High isostatic strength honeycomb structures and extrusion dies therefor26 Apr 2022US 11,312,662 B2Corning Incorporated
- Brick and manufacturting method therefor19 Feb 2026US 2026/0049029 A1
- Precision bead forming 3d print head for cementitious materials31 Mar 2022US 2022/0097255 A1UT-Battelle, LLC
- High isostatic strength honeycomb structures and extrusion dies therefor5 Aug 2021US 2021/0238104 A1Corning Incorporated
- Rotating member, kneading machine member, and kneading machine using same, bearing and bearing unit using same24 Jun 2021US 2021/0187452 A1KYOCERA Corporation
- Extrusion apparatus for ceramic structures and honeycomb filters3 Jun 2021US 2021/0162625 A1Corning Incorporated
Most cited
By later US patents
- Extrusion apparatus for ceramic honeycomb articles14US 6,375,450 B1Corning Incorporated · 2002
- Extrusion method and apparatus for producing a body from powder material11US 5,213,737 ACorning Incorporated · 1993
- Stone-plastic floor and method of preparing the same6US 11,400,617 B2Jiangsu Bbl Home Technology Company Limited · 2022
- Extrusion machine6US 4,548,565 ADY-Core Systems Ireland Limited · 1985
- Extruder with ceramic processing unit4US 4,941,748 ABayer Aktiengesellschaft · 1990