B29C 48/63
Having sections without mixing elements or threads, i.e. having cylinder shaped sections
Official title: having sections without mixing elements or threads, i.e. having cylinder shaped sections
B29C48/63 (Having sections without mixing elements or threads, i.e. having cylinder shaped sections) appears on 72 US grants and 55 published applications in this corpus.
Search patents in B29C- Granted patents
- 72
- Published applications
- 55
- Assignees
- 55
- Inventors
- 146
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 4 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 5 |
| 2011 | 1 | 2 |
| 2012 | 3 | 4 |
| 2013 | 0 | 6 |
| 2014 | 2 | 4 |
| 2015 | 7 | 6 |
| 2016 | 4 | 1 |
| 2017 | 3 | 4 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 0 |
| 2021 | 1 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Screw for direct molding, injection molding apparatus, and kneading piece12 May 2026US 12,623,384 B2The Japan Steel Works, Ltd.
- Composite material manufacturing equipments1 Oct 2024US 12,103,251 B2Enerage Inc.
- Extruder screw having paths within the screw, extruder, and extrusion method14 Nov 2023US 11,813,785 B2Shibaura Machine Co., Ltd.
- Single-shaft extruder and use of a single-shaft extruder, and method for altering morphology of a superabsorbent polymer gel using a single-shaft extruder4 Oct 2022US 11,458,665 B2BASF SE
- Twin screw extruder26 Apr 2022US 11,312,056 B2The Japan Steel Works, Ltd.
- Miniaturized volumetric extruder using twin conical screws, each provided with a thread, the pitch of which increases to maintain a constant displacement23 Jul 2026US 2026/0208423 A1Compagnie Generale Des Etablissements Michelin
- Screw for direct molding, injection molding apparatus, and kneading piece6 Nov 2025US 2025/0340003 A1The Japan Steel Works, Ltd.
- Composite material manufacturing equipments7 Mar 2024US 2024/0075696 A1Enerage Inc.
- Method and extruder for preparing a high quality block of immobilized active media18 Jan 2024US 2024/0017462 A1Arkema Inc.
- Extruder screw having paths within the screw, extruder, and extrusion method18 Nov 2021US 2021/0354362 A1Shibaura Machine Co., Ltd.
Most cited
By later US patents
- Method and apparatus for generating foamed thermoplastic materials45US 4,436,679 AMaryland Cup Corporation · 1984
- Twin screw extruder with thread-free mixing zones28US 4,900,156 AWerner & Pfleiderer · 1990
- Extruding electrode material27US 6,284,192 B1Corning Incorporated · 2001
- Mixer/extruder having selectively variable shearing action therein25US 4,462,691 AUniroyal, Inc. · 1984
- Twin conical screw extruder provided with pressurizing members25US 5,232,280 A1993