B32B 33/00
Layered products characterised by particular properties or particular surface features
Official title: Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
B32B33/00 (Layered products characterised by particular properties or particular surface features) appears on 932 US grants and 1,379 published applications in this corpus.
Search patents in B32B- Granted patents
- 932
- Published applications
- 1,379
- Assignees
- 783
- Inventors
- 3,083
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 17 | 0 |
| 2000 | 10 | 0 |
| 2001 | 10 | 3 |
| 2002 | 16 | 15 |
| 2003 | 12 | 20 |
| 2004 | 13 | 29 |
| 2005 | 5 | 26 |
| 2006 | 10 | 37 |
| 2007 | 8 | 26 |
| 2008 | 10 | 37 |
| 2009 | 7 | 47 |
| 2010 | 13 | 41 |
| 2011 | 17 | 37 |
| 2012 | 26 | 43 |
| 2013 | 27 | 60 |
| 2014 | 24 | 80 |
| 2015 | 46 | 56 |
| 2016 | 45 | 56 |
| 2017 | 35 | 63 |
| 2018 | 45 | 104 |
| 2019 | 40 | 89 |
| 2020 | 88 | 110 |
| 2021 | 73 | 114 |
| 2022 | 74 | 62 |
| 2023 | 73 | 82 |
| 2024 | 62 | 76 |
| 2025 | 53 | 42 |
| 2026 | 19 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-layer self-healing apparatuses and methods18 Aug 2026US 12,709,089 B2The Board of Trustees of the Leland Stanford Junior University
- Multi-material sheathing system with improved thermal insulation4 Aug 2026US 12,697,804 B2Owens Corning Intellectual Capital, LLC
- Wooden material sheet, wooden material sheet manufacturing method, molding, and molding manufacturing method28 Jul 2026US 12,691,664 B2Panasonic Intellectual Property Management Co., Ltd.
- Waterproof sound-transmitting sheet and method for manufacturing waterproof sound-transmitting sheet30 Jun 2026US 12,668,039 B2Amogreentech Co., Ltd.
- Gas barrier film, laminate, and packaging material26 May 2026US 12,636,864 B2Toppan Inc.
- Wood-based panel1 Oct 2026US 2026/0297958 A1Unilin BV
- Waterproof sound-transmitting sheet and method for manufacturing waterproof sound-transmitting sheet17 Sep 2026US 2026/0273892 A1Amogreentech Co., Ltd.
- Surface Covering With An Ultra-Violet (UV) Curable Surface Coating10 Sep 2026US 2026/0265536 A1Decoria Materials (Jiangsu) Co., Ltd.
- Gas barrier film, laminate, and packaging material3 Sep 2026US 2026/0257460 A1Toppan Inc.
- Battery cell, battery, and electrical device27 Aug 2026US 2026/0253988 A1Contemporary Amperex Technology Co., Limited
Most cited
By later US patents
- Cushioning device with improved flexible barrier membrane448US 5,713,141 ANIKE, Inc. · 1998
- High-density electronic package, and method for making same437US 6,376,769 B1Amerasia International Technology, Inc. · 2002
- Cushioning device with improved flexible barrier membrane405US 5,952,065 ANIKE, Inc. · 1999
- Birefringent interference polarizer345US 5,486,949 AThe Dow Chemical Company · 1996
- Birefringent interference polarizer255US 5,612,820 AThe Dow Chemical Company · 1997