B29C 48/425
Using three or more screws
Official title: using three or more screws (serially arranged screws B29C48/38, B29C48/385)
B29C48/425 (Using three or more screws) appears on 153 US grants and 162 published applications in this corpus.
Search patents in B29C- Granted patents
- 153
- Published applications
- 162
- Assignees
- 73
- Inventors
- 299
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 6 |
| 2005 | 2 | 7 |
| 2006 | 4 | 3 |
| 2007 | 1 | 5 |
| 2008 | 2 | 2 |
| 2009 | 4 | 7 |
| 2010 | 5 | 4 |
| 2011 | 3 | 7 |
| 2012 | 2 | 6 |
| 2013 | 6 | 7 |
| 2014 | 3 | 10 |
| 2015 | 8 | 11 |
| 2016 | 6 | 6 |
| 2017 | 11 | 7 |
| 2018 | 4 | 8 |
| 2019 | 10 | 16 |
| 2020 | 14 | 17 |
| 2021 | 9 | 10 |
| 2022 | 13 | 10 |
| 2023 | 8 | 4 |
| 2024 | 8 | 6 |
| 2025 | 6 | 2 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods for manufacturing bulked continuous filament from recycled pet9 Jun 2026US 12,649,261 B2Aladdin Manufacturing Corporation
- Extruder comprising a particular arrangement of asymmetrical screw elements on screw shafts2 Jun 2026US 12,643,276 B2Covestro Deutschland AG
- Bulked continuous carpet filament manufacturing from polytrimethylene terephthalate7 Apr 2026US 12,595,594 B2Aladdin Manufacturing Corporation
- Method for the continuous preparation of polyamide prepolymers24 Mar 2026US 12,583,969 B2Arkema France
- Systems for manufacturing bulked continuous carpet filament23 Sep 2025US 12,420,453 B2Aladdin Manufacturing Corporation
- Method for producing water-absorbing resin powder17 Jul 2025US 2025/0229253 A1Nippon Shokubai Co., Ltd.
- Method for producing polyether nitrile molding material and method for producing polyether nitrile resin composition molding material10 Jul 2025US 2025/0223402 A1Daikin Industries, Ltd.
- Device and method for processing plastics material3 Oct 2024US 2024/0326312 A1Coperion GmbH
- A device and a method for the heat treatment of thermoplastic melts30 May 2024US 2024/0173894 A1
- Methods for manufacturing bulked continuous filament from recycled pet16 May 2024US 2024/0157605 A1Aladdin Manufacturing Corporation
Most cited
By later US patents
- Multi-shaft thin-layer reactor73US 5,108,711 AHermann Berstorff Maschinenbau GmbH · 1992
- Apparatus for continuous processing of flowable materials72US 5,836,682 A1998
- Method and apparatus for the continuous production of high-molecular polymers68US 4,591,487 A1986
- Method and device for the reprocessing of a thermoplastic polycondensate61US 7,380,973 B2Buehler AG · 2008
- Extruder for producing molten plastic materials61US 7,513,677 B22009