B29C 48/686
Having grooves or cavities
Official title: {having grooves or cavities}
B29C48/686 (Having grooves or cavities) appears on 102 US grants and 53 published applications in this corpus.
Search patents in B29C- Granted patents
- 102
- Published applications
- 53
- Assignees
- 73
- Inventors
- 185
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 0 | 3 |
| 2008 | 3 | 0 |
| 2009 | 2 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 3 |
| 2012 | 1 | 2 |
| 2013 | 3 | 1 |
| 2014 | 2 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 3 |
| 2017 | 0 | 2 |
| 2018 | 1 | 5 |
| 2019 | 4 | 4 |
| 2020 | 3 | 3 |
| 2021 | 1 | 2 |
| 2022 | 2 | 0 |
| 2023 | 3 | 3 |
| 2024 | 1 | 4 |
| 2025 | 2 | 0 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Extruder30 Jun 2026US 12,668,012 B2Sumitomo Heavy Industries Modern, Ltd.
- Machine for applying hot-melt products19 May 2026US 12,629,878 B2Focke Meler Gluing Solutions, S.A.
- Single-screw extruder2 Sep 2025US 12,403,430 B2Battenfeld-Cincinnati Germany GmbH
- Extrusion method and apparatus10 Jun 2025US 12,325,047 B2Zephyros, Inc.
- Composite material manufacturing equipments1 Oct 2024US 12,103,251 B2Enerage Inc.
- Extruder16 Jul 2026US 2026/0200159 A1The Japan Steel Works, Ltd.
- Mixing device and electrode mixing method4 Jun 2026US 2026/0151748 A1Samsung SDI.Co., Ltd.
- Vent stuffer for extruder and extrusion apparatus26 Mar 2026US 2026/0084360 A1The Japan Steel Works, Ltd.
- Advanced visco-seals for single screw extruders12 Feb 2026US 2026/0042250 A1Dow Global Technologies LLC
- Charging system for feeding processing material to an extruder screw, having axially extending recesses in a hopper wall25 Jul 2024US 2024/0246277 A1AIM3D GmbH
Most cited
By later US patents
- Extruder assembly for extruding water-curable silane modified polymers54US 4,564,349 AUnion Carbide Corporation · 1986
- Mixing apparatus53US 4,128,342 ABarmag Barmer Maschinenfabrik AG · 1978
- Method and apparatus for generating foamed thermoplastic materials45US 4,436,679 AMaryland Cup Corporation · 1984
- Method and apparatus for producing fully cooked extrudates with significantly reduced specific mechanical energy inputs44US 7,521,076 B1Wenger Manufacturing, Inc. · 2009
- Method for the preparation of powder mixtures40US 5,320,796 ADow Corning Toray Silicone Co., Ltd. · 1994