B42F 21/00
Indexing means
Official title: Indexing means; Indexing tabs or protectors therefor
B42F21/00 (Indexing means) appears on 456 US grants and 349 published applications in this corpus.
Search patents in B42F- Granted patents
- 456
- Published applications
- 349
- Assignees
- 140
- Inventors
- 692
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 11 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 7 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 8 | 0 |
| 1994 | 11 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 13 | 0 |
| 1998 | 8 | 0 |
| 1999 | 20 | 0 |
| 2000 | 21 | 0 |
| 2001 | 8 | 5 |
| 2002 | 15 | 16 |
| 2003 | 12 | 13 |
| 2004 | 10 | 22 |
| 2005 | 14 | 26 |
| 2006 | 13 | 17 |
| 2007 | 3 | 20 |
| 2008 | 9 | 18 |
| 2009 | 7 | 25 |
| 2010 | 8 | 23 |
| 2011 | 15 | 25 |
| 2012 | 7 | 31 |
| 2013 | 14 | 14 |
| 2014 | 8 | 18 |
| 2015 | 12 | 7 |
| 2016 | 13 | 15 |
| 2017 | 8 | 7 |
| 2018 | 14 | 12 |
| 2019 | 11 | 5 |
| 2020 | 6 | 9 |
| 2021 | 7 | 6 |
| 2022 | 2 | 3 |
| 2023 | 4 | 1 |
| 2024 | 1 | 4 |
| 2025 | 3 | 2 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B42F 21/02Tabs integral with sheets, papers, cards, or suspension files119
- B42F 21/06Tabs detachably mounted on sheets, papers, cards, or suspension files104
- B42F 21/04Tabs permanently fastened to sheets, papers, cards, or suspension files81
- B42F 21/12Sheets, papers, or cards having edges cut away to facilitate indexing37
Recent patents
- Insertable index card for card sheets8 Sep 2026US 12,728,663 B2
- Folder folder5 Aug 2025US 12,377,676 B2ACCO Brands Corporation
- Article placeholder device27 May 2025US 12,311,693 B2
- Food storage labeling device15 Apr 2025US 12,275,552 B2
- Instrument component organizer4 Jun 2024US 11,999,182 B2Agilent Technologies, Inc.
- Filing Placeholder Device9 Jul 2026US 2026/0192590 A1
- Expansion file folder having at least one of a removably secured cover or a removably secured identification insert18 Jun 2026US 2026/0166910 A1
- Insertable index card for card sheets18 Jun 2026US 2026/0166911 A1
- Folder30 Apr 2026US 2026/0116117 A1Shenzhen Chuhaibiaogan Technology Co., Ltd
- Removably attachable notecard sleeve device2 Apr 2026US 2026/0091613 A1
Most cited
By later US patents
- Laminated card assembly159US 5,662,976 AAvery Dennison Corporation · 1997
- Laminated card assembly109US 6,159,570 AAvery Dennison Corporation · 2000
- Label dispensing sheet103US 5,182,152 A1993
- Indexing system, record structure, and linking methodology for paper-based and electronic-based informational assemblies100US 5,921,582 A1999
- Laminated card assembly99US 6,517,921 B2Avery Dennison Corporation · 2003