B32B 2250/04
4 layers
B32B2250/04 (4 layers) appears on 1,282 US grants and 2,214 published applications in this corpus.
Search patents in B32B- Granted patents
- 1,282
- Published applications
- 2,214
- Assignees
- 1,023
- Inventors
- 4,511
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 5 |
| 2004 | 0 | 2 |
| 2005 | 2 | 2 |
| 2006 | 4 | 13 |
| 2007 | 0 | 5 |
| 2008 | 2 | 6 |
| 2009 | 2 | 13 |
| 2010 | 2 | 13 |
| 2011 | 4 | 17 |
| 2012 | 9 | 27 |
| 2013 | 10 | 20 |
| 2014 | 14 | 41 |
| 2015 | 20 | 60 |
| 2016 | 20 | 62 |
| 2017 | 44 | 158 |
| 2018 | 58 | 242 |
| 2019 | 113 | 233 |
| 2020 | 138 | 250 |
| 2021 | 150 | 254 |
| 2022 | 166 | 213 |
| 2023 | 147 | 171 |
| 2024 | 161 | 159 |
| 2025 | 123 | 132 |
| 2026 | 68 | 115 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Protective shields8 Sep 2026US 12,729,508 B2Ea Safety, LLC
- Full-grain leather-like sheet1 Sep 2026US 12,722,365 B2Kuraray Co., Ltd.
- Self-adhering article1 Sep 2026US 12,723,180 B2Vybond Group, Inc.
- Recyclable PET film25 Aug 2026US 12,715,167 B2Mitsubishi Polyester Film GmbH
- Web material structuring belt, method for making and method for using25 Aug 2026US 12,715,194 B2The Procter & Gamble Company
- Patterned Apertured Webs8 Oct 2026US 2026/0306312 A1The Procter & Gamble Company
- Reinforced film for biocontainers8 Oct 2026US 2026/0307373 A1EMD Millipore Corporation
- Optical composite molding and production method thereof24 Sep 2026US 2026/0284993 A1Yamamoto Kogaku Co., Ltd.
- Web material structuring belt, method for making and method for using24 Sep 2026US 2026/0285005 A1The Procter & Gamble Company
- Laminate and method for manufacturing laminate17 Sep 2026US 2026/0273891 A1Nitto Denko Corporation
Most cited
By later US patents
- Method of room temperature covalent bonding315US 7,109,092 B2Ziptronix, Inc. · 2006
- Headgear for masks216US 8,950,404 B2ResMed Limited · 2015
- Method of room temperature covalent bonding215US 8,841,002 B2Ziptronix, Inc. · 2014
- Engineered waterproof flooring and wall covering planks58US 9,156,233 B2US Floors, Inc. · 2015
- Reinforcing composite for roofing membranes and process for making such composites56US 4,491,617 ABay Mills Limited · 1985