B32B 2581/00
Seals
Official title: Seals; Sealing equipment; Gaskets
B32B2581/00 (Seals) appears on 410 US grants and 518 published applications in this corpus.
Search patents in B32B- Granted patents
- 410
- Published applications
- 518
- Assignees
- 343
- Inventors
- 1,181
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 8 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 4 |
| 2002 | 7 | 6 |
| 2003 | 10 | 7 |
| 2004 | 5 | 16 |
| 2005 | 1 | 12 |
| 2006 | 8 | 20 |
| 2007 | 5 | 22 |
| 2008 | 5 | 11 |
| 2009 | 4 | 20 |
| 2010 | 11 | 35 |
| 2011 | 13 | 17 |
| 2012 | 12 | 11 |
| 2013 | 5 | 15 |
| 2014 | 10 | 24 |
| 2015 | 14 | 31 |
| 2016 | 13 | 35 |
| 2017 | 23 | 29 |
| 2018 | 22 | 32 |
| 2019 | 27 | 27 |
| 2020 | 27 | 33 |
| 2021 | 20 | 26 |
| 2022 | 25 | 19 |
| 2023 | 14 | 22 |
| 2024 | 17 | 21 |
| 2025 | 19 | 13 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Toner seal member and toner cartridge15 Sep 2026US 12,736,899 B2Inoac Corporation
- Mat material, exhaust gas purification device, and method for producing mat material28 Jul 2026US 12,691,659 B2Ibiden Co., Ltd.
- Application device designed to apply a seal to a body element of a vehicle and method14 Jul 2026US 12,679,082 B2Bayerische Motoren Werke Aktiengesellschaft
- Seal member16 Jun 2026US 12,655,324 B2Yoshino Gypsum Co., Ltd.
- Container sealing body28 Apr 2026US 12,612,213 B2Seal and Pack Co., Ltd
- Composite film for sealable and peelable lidding to be sealed against plain tinplate10 Sep 2026US 2026/0264929 A1Amcor Flexibles North America, Inc.
- Reactor blend ethylene polymer compositions and films10 Sep 2026US 2026/0265510 A1NOVA Chemicals (International) S.A.
- Container sealing body6 Aug 2026US 2026/0225764 A1Seal and Pack Co., Ltd
- Multi-layer polyethylene film4 Jun 2026US 2026/0151949 A1Tamapoly Co., Ltd.
- Sealing film and container comprising sealing film28 May 2026US 2026/0145409 A1Alpla Werke Alwin Lehner GmbH & Co. KG
Most cited
By later US patents
- Self-sealing partition124US 6,103,341 AL&L Products, Inc. · 2000
- Ceramic-metal composites105US 4,639,388 AChromalloy American Corporation · 1987
- Joint sealant91US 5,130,176 A1992
- Self-sealing partition84US 6,383,610 B1L&L Products, Inc. · 2002
- Resealable liner and induction seal combination81US 6,082,566 ATech-Seal Products, Inc. · 2000