B29C 48/375
Plasticisers, homogenisers or feeders comprising two or more stages
B29C48/375 (Plasticisers, homogenisers or feeders comprising two or more stages) appears on 779 US grants and 752 published applications in this corpus.
Search patents in B29C- Granted patents
- 779
- Published applications
- 752
- Assignees
- 465
- Inventors
- 1,800
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 4 | 0 |
| 1992 | 13 | 0 |
| 1993 | 21 | 0 |
| 1994 | 20 | 0 |
| 1995 | 9 | 0 |
| 1996 | 14 | 0 |
| 1997 | 7 | 0 |
| 1998 | 21 | 0 |
| 1999 | 15 | 0 |
| 2000 | 11 | 0 |
| 2001 | 26 | 7 |
| 2002 | 29 | 36 |
| 2003 | 20 | 26 |
| 2004 | 24 | 28 |
| 2005 | 12 | 27 |
| 2006 | 20 | 30 |
| 2007 | 15 | 12 |
| 2008 | 13 | 31 |
| 2009 | 9 | 33 |
| 2010 | 9 | 40 |
| 2011 | 12 | 26 |
| 2012 | 29 | 33 |
| 2013 | 14 | 38 |
| 2014 | 25 | 30 |
| 2015 | 21 | 40 |
| 2016 | 24 | 24 |
| 2017 | 28 | 41 |
| 2018 | 24 | 35 |
| 2019 | 25 | 35 |
| 2020 | 20 | 37 |
| 2021 | 24 | 28 |
| 2022 | 25 | 39 |
| 2023 | 23 | 25 |
| 2024 | 23 | 23 |
| 2025 | 27 | 18 |
| 2026 | 15 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 48/385Using two or more serially arranged screws in separate barrels275
- B29C 48/38Using two or more serially arranged screws in the same barrel246
- B29C 48/387Using a screw extruder and a gear pump236
- B29C 48/39A first extruder feeding the melt into an intermediate location of a141
- B29C 48/388Using a screw extruder and a ram or piston83
Recent patents
- Methods for manufacturing bulked continuous filament from recycled pet9 Jun 2026US 12,649,261 B2Aladdin Manufacturing Corporation
- Apparatus and method for making objects from recycled polymeric material2 Jun 2026US 12,643,264 B2Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
- Decorative panel and process for producing a panel26 May 2026US 12,636,866 B2CFL Holding Limited
- Compounding extruder for producing polypropylene composition19 May 2026US 12,629,876 B2Sabic Global Technologies B.V.
- Method and device for processing polycondensates28 Apr 2026US 12,611,799 B2Sml Maschinengesellschaft M. B. H.
- Decorative panel and process for producing a panel27 Aug 2026US 2026/0249597 A1CFL Holding Limited
- Method for dispensing discrete volumes23 Jul 2026US 2026/0208447 A1Arburg GmbH + Co KG
- Apparatus for degassing molten plastic material21 May 2026US 2026/0138321 A1Gamma Meccanica S.P.A.
- Apparatus and method for producing objects in continuous cycle from plastic material26 Mar 2026US 2026/0084350 A1Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
- Vent stuffer for extruder and extrusion apparatus26 Mar 2026US 2026/0084360 A1The Japan Steel Works, Ltd.
Most cited
By later US patents
- Methods for manufacturing molded sheets having a high starch content113US 5,810,961 AE. Khashoggi Industries · 1998
- Compositions having a high ungelatinized starch content and sheets molded therefrom103US 5,736,209 AE. Kashoggi, Industries, LLC · 1998
- Process for producing a molded product from recycled carpet waste102US 6,306,318 B1Selectech, Ltd. · 2001
- Process for making thermoplastic-biofiber composite materials and articles including a poly(vinylchloride) component94US 6,280,667 B1Andersen Corporation · 2001
- Process for continuously producing polyester articles with scrap recycle in a continuous melt-to-preform process93US 5,945,460 AEastman Chemical Company · 1999