D21J 1/16
Special fibreboard
D21J1/16 (Special fibreboard) appears on 85 US grants and 81 published applications in this corpus.
Search patents in D21J- Granted patents
- 85
- Published applications
- 81
- Assignees
- 75
- Inventors
- 237
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 3 | 4 |
| 2004 | 0 | 4 |
| 2005 | 2 | 1 |
| 2006 | 2 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 0 | 4 |
| 2011 | 2 | 2 |
| 2012 | 4 | 2 |
| 2013 | 1 | 7 |
| 2014 | 2 | 1 |
| 2015 | 4 | 3 |
| 2016 | 1 | 0 |
| 2017 | 0 | 4 |
| 2018 | 5 | 6 |
| 2019 | 1 | 6 |
| 2020 | 2 | 3 |
| 2021 | 2 | 4 |
| 2022 | 4 | 7 |
| 2023 | 4 | 5 |
| 2024 | 4 | 5 |
| 2025 | 3 | 5 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Tool for making an aesthetic wall skin24 Jun 2025US 12,337,504 B1Pulp Art Surfaces LLC
- Rapidly pressing mixtures of paper and plastic to targeted thickness and density11 Feb 2025US 12,220,901 B2Continuus Materials Intellectual Property, LLC
- Recyclable dosing device14 Jan 2025US 12,196,595 B2Societe des Produits Nestle S. A.
- Dosing device29 Oct 2024US 12,130,164 B2Societe des Produits Nestle S. A.
- Water resistant wood flooring17 Sep 2024US 12,091,866 B2Ahf, LLC
- Racetrack oval paperboard products with improved rigidity and moisture barrier properties14 Aug 2025US 2025/0257530 A1Hoffmaster Group, Inc.
- Method for producing a sound-absorbing panel19 Jun 2025US 2025/0198092 A1Impact Acoustic AG
- Method of forming products from fibrous material and forming device15 May 2025US 2025/0154729 A1KIEFEL GmbH
- Recyclable dosing device27 Mar 2025US 2025/0102342 A1Societe des Produits Nestle S. A.
- Dosing device9 Jan 2025US 2025/0012612 A1Societe des Produits Nestle S. A.
Most cited
By later US patents
- Method of making a low density frothed mineral wool95US 5,013,405 AUSG Interiors, Inc. · 1991
- Shingle granule valve and method of depositing granules onto a moving substrate88US 6,610,147 B2Owens Corning Fiberglas Technology, Inc. · 2003
- Dual layer acoustical ceiling tile having an improved sound absorption value71US 6,443,256 B1USG Interiors, Inc. · 2002
- Method for forming a fire resistant cellulose product, and associated apparatus46US 9,005,396 B2BLH Technologies, Inc. · 2015
- Latex containing papers38US 4,510,019 APapeteries de Jeand'heurs · 1985