B29C 48/254
Sealing means
Official title: {Sealing means}
B29C48/254 (Sealing means) appears on 146 US grants and 106 published applications in this corpus.
Search patents in B29C- Granted patents
- 146
- Published applications
- 106
- Assignees
- 115
- Inventors
- 291
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 2 |
| 2002 | 5 | 1 |
| 2003 | 5 | 3 |
| 2004 | 1 | 4 |
| 2005 | 0 | 2 |
| 2006 | 2 | 1 |
| 2007 | 2 | 0 |
| 2008 | 2 | 3 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 3 | 4 |
| 2012 | 1 | 2 |
| 2013 | 2 | 4 |
| 2014 | 2 | 7 |
| 2015 | 4 | 11 |
| 2016 | 5 | 7 |
| 2017 | 7 | 3 |
| 2018 | 3 | 10 |
| 2019 | 6 | 6 |
| 2020 | 7 | 4 |
| 2021 | 5 | 6 |
| 2022 | 6 | 7 |
| 2023 | 2 | 2 |
| 2024 | 8 | 9 |
| 2025 | 2 | 4 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Members for sealing, baffling, or reinforcing4 Aug 2026US 12,697,764 B2Zephyros, Inc.
- Multi-shaft preparation unit for plastic melts12 May 2026US 12,623,375 B2Gneuss GmbH
- Planetary roller extruder for processing biodegradable materials and method for cleaning the planetary roller extruder17 Feb 2026US 12,552,080 B2Battenfeld-Cincinnati Germany GmbH
- Sealing apparatus, sealing and cutting device, and processing method16 Dec 2025US 12,496,761 B2Suzhou Yiben Life Technology Co., Ltd
- Sizer for an extrusion machine with improved cooling and vacuum channels9 Sep 2025US 12,409,595 B2Engineered Profiles LLC
- Low-scalping film for, packaged formulations17 Sep 2026US 2026/0273826 A1Kenvue Brands LLC
- Advanced visco-seals for single screw extruders12 Feb 2026US 2026/0042250 A1Dow Global Technologies LLC
- Equipment for Preparing Polyethylene Coating with Three-Layer Structure Wound on Steel Elbow4 Sep 2025US 2025/0276482 A1Wuxi Zhongyou Ruide Anticorrosion Technology Co.Ltd
- Extruder Comprising a Filter Element22 May 2025US 2025/0162230 A1Feddem GmbH & Co. KG
- Extrusion device, method for manufacturing a hollow structure, and use of an extrusion device16 Jan 2025US 2025/0017718 A1Friedrich-Alexander-Universitaet Erlangen-Nuernberg
Most cited
By later US patents
- Reciprocatory piston and cylinder machines40US 4,102,608 ACommonwealth Scientific and Industrial Research Organization · 1978
- Screen changer36US 3,962,092 AThe Dow Chemical Company · 1976
- Polymer melt filtration apparatus32US 5,456,828 AZimmer, Inc. · 1995
- Shaft seal30US 4,521,026 ARCA Corporation · 1985
- Split extrusion die assembly for thermoplastic materials and methods of using the same30US 4,913,863 AHoechst Celanese Corporation · 1990