B29C 48/525
Conical screws
B29C48/525 (Conical screws) appears on 93 US grants and 95 published applications in this corpus.
Search patents in B29C- Granted patents
- 93
- Published applications
- 95
- Assignees
- 82
- Inventors
- 235
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 5 |
| 2004 | 2 | 1 |
| 2005 | 2 | 4 |
| 2006 | 0 | 0 |
| 2007 | 1 | 4 |
| 2008 | 2 | 2 |
| 2009 | 4 | 4 |
| 2010 | 6 | 5 |
| 2011 | 0 | 2 |
| 2012 | 1 | 3 |
| 2013 | 3 | 4 |
| 2014 | 3 | 3 |
| 2015 | 2 | 2 |
| 2016 | 4 | 4 |
| 2017 | 3 | 6 |
| 2018 | 2 | 3 |
| 2019 | 2 | 3 |
| 2020 | 2 | 5 |
| 2021 | 1 | 4 |
| 2022 | 1 | 10 |
| 2023 | 4 | 4 |
| 2024 | 4 | 8 |
| 2025 | 3 | 2 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Machine for applying hot-melt products19 May 2026US 12,629,878 B2Focke Meler Gluing Solutions, S.A.
- Extrusion technique for forming polymer preforms, and tube-forming technique21 Apr 2026US 12,605,873 B2Kautex Maschinenbau System GmbH
- Plant for producing an extruded silicone intermediate, use of a corotating twin-screw extruder, and process for producing a raw silicone extrudate24 Feb 2026US 12,558,831 B2Raumedic AG
- Device for processing material, in particular plastics material24 Feb 2026US 12,558,832 B2PureLoop GesmbH
- Temperature management of rubber mixtures discharged from a converging conical twin-screw mixer6 Jan 2026US 12,515,374 B2Compagnie Generale Des Etablissements Michelin
- 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
- Silicone manufacturing9 Jul 2026US 2026/0193416 A1Dow Global Technologies LLC
- Extruder barrel with separable liner and method of refurbishment18 Jun 2026US 2026/0166801 A1Xaloy, Inc.
- Methods for extruding elastomeric compositions16 Apr 2026US 2026/0102959 A1Cabot Corporation
- Device for manufacturing a sheet or panel shaped product and methods for manufacturing a polymeric board or sheet material and/or a decorative panel22 Jan 2026US 2026/0021617 A1Unilin BV
Most cited
By later US patents
- Conical logarithmic spiral viscosity pump144US 5,312,224 AInternational Business Machines Corporation · 1994
- Method and apparatus to control viscosity of molten plastics prior to a molding operation45US 6,210,030 B12001
- Method of manufacturing bulked continuous filament44US 9,630,353 B2Mohawk Industries, Inc. · 2017
- Apparatus of shrinking volumes of waste foamed plastics32US 5,114,331 ASuruga Seiki Co., Ltd. · 1992
- Single-screw extruder for solid state shear extrusion pulverization and method31US 5,704,555 AIllinois Institute of Technology · 1998