B32B 21/02
The layer being formed of fibres, chips, or particles
Official title: {the layer being formed} of fibres, chips, or particles {, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard}
B32B21/02 (The layer being formed of fibres, chips, or particles) appears on 893 US grants and 1,316 published applications in this corpus.
Search patents in B32B- Granted patents
- 893
- Published applications
- 1,316
- Assignees
- 505
- Inventors
- 1,846
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 7 |
| 2003 | 6 | 11 |
| 2004 | 6 | 18 |
| 2005 | 4 | 19 |
| 2006 | 5 | 33 |
| 2007 | 7 | 32 |
| 2008 | 9 | 24 |
| 2009 | 10 | 26 |
| 2010 | 12 | 46 |
| 2011 | 9 | 38 |
| 2012 | 17 | 31 |
| 2013 | 20 | 40 |
| 2014 | 21 | 44 |
| 2015 | 29 | 47 |
| 2016 | 44 | 67 |
| 2017 | 47 | 62 |
| 2018 | 34 | 80 |
| 2019 | 58 | 108 |
| 2020 | 62 | 97 |
| 2021 | 68 | 109 |
| 2022 | 74 | 94 |
| 2023 | 68 | 87 |
| 2024 | 77 | 84 |
| 2025 | 84 | 60 |
| 2026 | 22 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-material sheathing system6 Oct 2026US 12,752,520 B2Owens Corning Intellectual Capital, LLC
- Direct lamination of a melamine layer to a magnesium oxide core11 Aug 2026US 12,703,171 B1Columbia Insurance Company
- Organic slurry and method for manufacture thereof11 Aug 2026US 12,703,795 B2Willamette Valley Company
- Rigid biodegradable food container14 Jul 2026US 12,679,614 B2Societe des Produits Nestle S. A.
- Coextruded hemp composite board16 Jun 2026US 12,654,355 B2
- Floor panel8 Oct 2026US 2026/0308921 A1Unilin BV
- Wood-based material panel with at least one depression embossed into the upper surface1 Oct 2026US 2026/0295979 A1Flooring Technologies Ltd.
- Laminate panel and method for manufacturing a laminate panel1 Oct 2026US 2026/0295980 A1Aladdin Manufacturing Corporation
- Wood-based panel1 Oct 2026US 2026/0297958 A1Unilin BV
- Paper sheet application method for construction panels10 Sep 2026US 2026/0266051 A1Trade Fabrication Systems Limited
Most cited
By later US patents
- Flooring material for building237US 5,540,025 ADaiken Trade & Industry Co., Ltd. · 1996
- Floor covering209US 6,772,568 B2Unilin Beheer B. V., besloten vennootschap · 2004
- Plate-shaped molded article and process for its preparation and use201US 4,503,115 AHoechst Aktiengesellschaft · 1985
- Decorative thermosetting laminate143US 5,034,272 APerstorp AB · 1991
- Structural wall panels136US 6,481,172 B12002