B42F 13/16
Filing appliances with means for engaging perforations or slots: with claws or
Official title: with claws or rings (B42F13/30 takes precedence; for permanent binding B42B5/08)
B42F13/16 (Filing appliances with means for engaging perforations or slots: with claws or) appears on 407 US grants and 348 published applications in this corpus.
Search patents in B42F- Granted patents
- 407
- Published applications
- 348
- Assignees
- 128
- Inventors
- 496
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 11 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 10 | 0 |
| 1998 | 14 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 13 | 2 |
| 2002 | 10 | 9 |
| 2003 | 7 | 16 |
| 2004 | 4 | 12 |
| 2005 | 7 | 27 |
| 2006 | 6 | 23 |
| 2007 | 6 | 36 |
| 2008 | 8 | 27 |
| 2009 | 13 | 28 |
| 2010 | 25 | 23 |
| 2011 | 13 | 15 |
| 2012 | 9 | 17 |
| 2013 | 17 | 8 |
| 2014 | 9 | 20 |
| 2015 | 9 | 19 |
| 2016 | 9 | 13 |
| 2017 | 14 | 9 |
| 2018 | 12 | 7 |
| 2019 | 9 | 5 |
| 2020 | 17 | 13 |
| 2021 | 6 | 6 |
| 2022 | 3 | 4 |
| 2023 | 3 | 3 |
| 2024 | 2 | 1 |
| 2025 | 6 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Paper-made binder, and manufacturing method and manufacturing apparatus therefor24 Mar 2026US 12,583,149 B2
- Ring binder mechanism3 Mar 2026US 12,565,059 B1Navneet Education Limited
- Magnetic connector26 Aug 2025US 12,397,578 B2Wingbinder Limited
- Folder folder5 Aug 2025US 12,377,676 B2ACCO Brands Corporation
- Food storage labeling device15 Apr 2025US 12,275,552 B2
- File12 Mar 2026US 2026/0070366 A1Kokuyo Co., Ltd.
- Modular Notebook System12 Mar 2026US 2026/0070367 A1VersiFolio, LLC
- Ring binder mechanism5 Mar 2026US 2026/0061770 A1Navneet Education Limited
- Write Erasable Component System10 Apr 2025US 2025/0115073 A1
- Paper-made binder, and manufacturing method and manufacturing apparatus therefor6 Feb 2025US 2025/0042067 A1
Most cited
By later US patents
- Ring binder92US 5,286,128 AU.S. Ring Binder, L.P. · 1994
- Ring binder89US 4,566,817 A1986
- Looseleaf binder with sliding lock mechanism88US 4,919,557 ADennison Manufacturing Company · 1990
- Plastic looseleaf binder ring assembly84US 3,954,343 A1976
- Trigger mechanism for ring binder84US 4,813,803 AWilson Jones Company · 1989