B29L 2031/26
Sealing devices
Official title: Sealing devices, e.g. packaging for pistons or pipe joints
B29L2031/26 (Sealing devices) appears on 845 US grants and 720 published applications in this corpus.
Search patents in B29L- Granted patents
- 845
- Published applications
- 720
- Assignees
- 527
- Inventors
- 1,724
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 9 | 0 |
| 1978 | 6 | 0 |
| 1979 | 9 | 0 |
| 1980 | 9 | 0 |
| 1981 | 14 | 0 |
| 1982 | 8 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 14 | 0 |
| 1986 | 6 | 0 |
| 1987 | 13 | 0 |
| 1988 | 18 | 0 |
| 1989 | 23 | 0 |
| 1990 | 9 | 0 |
| 1991 | 17 | 0 |
| 1992 | 17 | 0 |
| 1993 | 20 | 0 |
| 1994 | 21 | 0 |
| 1995 | 16 | 0 |
| 1996 | 24 | 0 |
| 1997 | 13 | 0 |
| 1998 | 9 | 0 |
| 1999 | 12 | 0 |
| 2000 | 18 | 0 |
| 2001 | 10 | 3 |
| 2002 | 14 | 18 |
| 2003 | 16 | 19 |
| 2004 | 16 | 31 |
| 2005 | 14 | 24 |
| 2006 | 10 | 23 |
| 2007 | 6 | 21 |
| 2008 | 12 | 37 |
| 2009 | 13 | 20 |
| 2010 | 20 | 29 |
| 2011 | 15 | 18 |
| 2012 | 15 | 22 |
| 2013 | 12 | 18 |
| 2014 | 16 | 31 |
| 2015 | 17 | 37 |
| 2016 | 21 | 53 |
| 2017 | 28 | 50 |
| 2018 | 38 | 45 |
| 2019 | 49 | 37 |
| 2020 | 37 | 36 |
| 2021 | 24 | 30 |
| 2022 | 30 | 30 |
| 2023 | 30 | 22 |
| 2024 | 16 | 27 |
| 2025 | 20 | 22 |
| 2026 | 14 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Manufacturing method for sealing gasket, and mold8 Sep 2026US 12,728,567 B2Hangzhou Ao Ke Mei Rui Technology Co., Ltd.
- Annular seal material and manufacturing method25 Aug 2026US 12,716,500 B2Valqua, Ltd.
- Method for protecting a profile structural part of an aircraft against mechanical wear and/or mechanical impact16 Jun 2026US 12,654,369 B2Airbus Operations GmbH
- Systems and methods for custom-designing gaskets for a virtual reality interface9 Jun 2026US 12,650,676 B1CustomFitVR LLC
- Sealing element and manufacturing process2 Jun 2026US 12,644,521 B2ElringKlinger AG
- Method and apparatus for obtaining doses for forming an annular seal10 Sep 2026US 2026/0264304 A1Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
- Method of producing sealing material and sealing material27 Aug 2026US 2026/0249570 A1Valqua, Ltd.
- Composite spacer ring and production method thereof6 Aug 2026US 2026/0225332 A1Safran
- Thermoplastic Vulcanizate Compositions Including Cyclic Olefin Polymers25 Jun 2026US 2026/0175503 A1Celanese International Corporation
- An article made from an elastomeric polymer composition11 Jun 2026US 2026/0159651 A1
Most cited
By later US patents
- Closure for a container214US 4,754,892 A1988
- Composite material190US 5,766,719 AMagna Exterior Systems GmbH · 1998
- Process for the production of an automobile pane equipped with an elastomer frame of a predetermined shape133US 5,421,940 ASaint-Gobain Vitrage International · 1995
- Dense polytetrafluoroethylene articles85US 5,374,473 AW. L. Gore & Associates, Inc. · 1994
- Reaction injection molding of window gasket79US 4,839,122 ALibbey-Owens-Ford Co. · 1989