B42F 3/04
Attachment means of ring, finger or claw form
Official title: Attachment means of ring, finger or claw form (ring files B42F13/16; using such means for permanent attachment B42B5/08)
B42F3/04 (Attachment means of ring, finger or claw form) appears on 81 US grants and 79 published applications in this corpus.
Search patents in B42F- Granted patents
- 81
- Published applications
- 79
- Assignees
- 31
- Inventors
- 127
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 3 | 5 |
| 2005 | 0 | 1 |
| 2006 | 3 | 3 |
| 2007 | 0 | 4 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 3 | 4 |
| 2011 | 1 | 6 |
| 2012 | 1 | 4 |
| 2013 | 3 | 6 |
| 2014 | 5 | 11 |
| 2015 | 5 | 7 |
| 2016 | 6 | 2 |
| 2017 | 4 | 3 |
| 2018 | 3 | 4 |
| 2019 | 5 | 1 |
| 2020 | 3 | 4 |
| 2021 | 2 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Stationery organizer5 May 2026US 12,617,225 B2
- Binder box18 Mar 2025US 12,252,309 B2Grandville Printing Company
- Loose-leaf notebook and binding structure thereof4 Feb 2025US 12,214,615 B2Shandong Vikko Paper Co., Ltd
- Modular binder assembly25 Apr 2023US 11,633,974 B1
- Coupling device11 Oct 2022US 11,465,435 B2ACCO Brands Corporation
- Loose-leaf notebook and binding structure thereof22 Aug 2024US 2024/0278593 A1Shandong Vikko Paper Co., Ltd
- Binder box16 Nov 2023US 2023/0365296 A1Grandville Printing Company
- Stationery organizer9 Feb 2023US 2023/0037830 A1
- Shelf tag identification system16 Jun 2022US 2022/0189345 A1Grandville Printing Company
- Coupling device12 May 2022US 2022/0144007 A1ACCO Brands Corporation
Most cited
By later US patents