B29C 48/693
Substantially flat filters mounted at the end of an extruder screw perpendicular
Official title: Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis
B29C48/693 (Substantially flat filters mounted at the end of an extruder screw perpendicular) appears on 98 US grants and 98 published applications in this corpus.
Search patents in B29C- Granted patents
- 98
- Published applications
- 98
- Assignees
- 85
- Inventors
- 216
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
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| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
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| 1983 | 1 | 0 |
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| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 3 |
| 2003 | 0 | 3 |
| 2004 | 1 | 6 |
| 2005 | 2 | 4 |
| 2006 | 2 | 6 |
| 2007 | 4 | 1 |
| 2008 | 2 | 4 |
| 2009 | 1 | 7 |
| 2010 | 3 | 11 |
| 2011 | 4 | 2 |
| 2012 | 6 | 2 |
| 2013 | 2 | 5 |
| 2014 | 2 | 6 |
| 2015 | 4 | 5 |
| 2016 | 3 | 4 |
| 2017 | 3 | 2 |
| 2018 | 1 | 5 |
| 2019 | 5 | 5 |
| 2020 | 1 | 2 |
| 2021 | 3 | 1 |
| 2022 | 4 | 5 |
| 2023 | 2 | 1 |
| 2024 | 1 | 4 |
| 2025 | 6 | 3 |
| 2026 | 1 | 0 |
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
- Method and device for directly preparing foamed polylactic acid (PLA) product from PLA melt28 Oct 2025US 12,454,086 B2JHM Engineering and Technology (Ningbo) Co., Ltd
- Apparatus for filtering a fluid, in particular a plastic melt having impurities, and a valve arrangement for such a fluid3 Jun 2025US 12,318,712 B2Nordson Corporation
- Method for consolidating a bulk molding compound3 Jun 2025US 12,318,987 B2The Boeing Company
- Method and apparatus for producing porous plastic profiles1 Apr 2025US 12,263,626 B2Mg IP Ltd
- Throttle grooves and control loop/method to achieve an optimized pressure constant backflush procedure of the screen cavity of a screen changer during backflush19 Jun 2025US 2025/0196422 A1Nordson Corporation
- Device for filtering a liquid plastic and corresponding operating method6 Mar 2025US 2025/0073622 A1Nordson Corporation
- Filter device for the high-pressure filtration of a plastic melt16 Jan 2025US 2025/0018318 A1Gneuss GmbH
- Filter device for pvc plastic melt for connection to a twin screw extruder and twin screw extruder for pvc processing28 Nov 2024US 2024/0391154 A1Gneuss GmbH
- Method and system for the filtration of liquids and/or melts21 Nov 2024US 2024/0383186 A1Next Generation Analytics GmbH
Most cited
By later US patents
- Low shear free-flow extruder breaker plate48US 5,346,383 ASouthwire Company · 1994
- Filter screen exchanging apparatus for plastic extruder33US 4,167,384 AThe Japan Steel Works, Ltd. · 1979
- Process for the production of power cable33US 5,716,574 ANippon Unicar Company Limited · 1998
- Apparatus for degassing thermoplastic synthetic plastics material30US 5,651,944 A1997
- Apparatus for filtering and extruding synthetic plastic scrap material26US 5,419,634 A1995