B42F 3/00
Sheets temporarily attached together involving perforations
Official title: Sheets temporarily attached together involving perforations; Means therefor; Sheet details therefor (staples, fasteners in general F16B)
B42F3/00 (Sheets temporarily attached together involving perforations) appears on 242 US grants and 198 published applications in this corpus.
Search patents in B42F- Granted patents
- 242
- Published applications
- 198
- Assignees
- 100
- Inventors
- 398
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 4 |
| 2003 | 1 | 6 |
| 2004 | 7 | 8 |
| 2005 | 2 | 5 |
| 2006 | 6 | 6 |
| 2007 | 3 | 10 |
| 2008 | 2 | 8 |
| 2009 | 3 | 4 |
| 2010 | 5 | 8 |
| 2011 | 2 | 8 |
| 2012 | 2 | 7 |
| 2013 | 4 | 17 |
| 2014 | 9 | 19 |
| 2015 | 13 | 22 |
| 2016 | 16 | 18 |
| 2017 | 9 | 10 |
| 2018 | 15 | 13 |
| 2019 | 16 | 4 |
| 2020 | 5 | 5 |
| 2021 | 5 | 4 |
| 2022 | 3 | 4 |
| 2023 | 3 | 5 |
| 2024 | 2 | 2 |
| 2025 | 3 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Adaptable size threaded fastening system for flip books7 Jan 2025US 12,187,067 B1
- Notebooks with removable components3 Dec 2024US 12,157,331 B1Miller IP Law, LLC
- Loose-leaf notebook and binding structure thereof22 Aug 2024US 2024/0278593 A1Shandong Vikko Paper Co., Ltd
- Painter's color diary9 May 2024US 2024/0149606 A1
- Modular notebook system21 Dec 2023US 2023/0406024 A1Rocket Innovations, Inc.
- Binder box16 Nov 2023US 2023/0365296 A1Grandville Printing Company
- Punch-hole sketches to boost lower-arm muscles and fine motor-skills of kids16 Mar 2023US 2023/0083272 A1
Most cited
By later US patents
- Piercing clamp97US 5,125,758 A1992
- Loose leaf binder62US 4,486,112 AR. D. Cummins, Incorporated · 1984
- Information management system58US 5,333,908 AMemorybank, Inc. · 1994
- Fastening means for making inserts in wire bound notebooks and the like51US 4,430,015 AThe Mead Corporation · 1984
- Attaching strips for documents43US 5,683,194 AMinnesota Mining and Manufacturing Company · 1997