B42F 21/04
Tabs permanently fastened to sheets, papers, cards, or suspension files
B42F21/04 (Tabs permanently fastened to sheets, papers, cards, or suspension files) appears on 81 US grants and 49 published applications in this corpus.
Search patents in B42F- Granted patents
- 81
- Published applications
- 49
- Assignees
- 32
- Inventors
- 129
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 2 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 3 |
| 2011 | 5 | 4 |
| 2012 | 1 | 10 |
| 2013 | 0 | 3 |
| 2014 | 3 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 3 |
| 2017 | 2 | 3 |
| 2018 | 7 | 3 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 0 | 3 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Folder folder5 Aug 2025US 12,377,676 B2ACCO Brands Corporation
- Using indexing targets to index textual and/or graphical visual content manually created in a book18 Jul 2023US 11,701,914 B2
- Filer with insertable cover14 Jun 2022US 11,358,408 B2ACCO Brands Corporation
- “Wideback” pamphlet for easy identification on a shelf28 Jan 2020US 10,543,713 B2
- Folder notebooks17 Dec 2019US 10,507,682 B2ACCO Brands Corporation
- Using indexing targets to index textual and/or graphical visual content manually created in a book16 Dec 2021US 2021/0387468 A1
- Wallet card retrieval tab5 Aug 2021US 2021/0235829 A1
- System of means for indexing the books of the bible21 Jan 2021US 2021/0016594 A1
- Filer with insertable cover19 Nov 2020US 2020/0361231 A1ACCO Brands Corporation
- Folder notebooks16 Apr 2020US 2020/0114678 A1ACCO Brands Corporation
Most cited
By later US patents
- Label dispensing sheet103US 5,182,152 A1993
- Index tab label assembly70US 5,135,261 AAvery Dennison Corporation · 1992
- Self tabbing label and system therefore67US 6,364,366 B1Productive Environments, Inc. · 2002
- Method of making an index tab label assembly60US 5,340,427 AAvery Dennison Corporation · 1994
- Transferable index tabs46US 6,013,154 ABarbara Thomas Enterprises, Inc. · 2000