B42F
Sheets temporarily attached together
Official title: SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING (reading desks A47B19/00; book rests A47B23/00)
B42F (Sheets temporarily attached together) appears on 3,775 US grants and 2,326 published applications in this corpus.
Search patents in B42F- Granted patents
- 3,775
- Published applications
- 2,326
- Assignees
- 1,085
- Inventors
- 4,934
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 65 | 0 |
| 1977 | 59 | 0 |
| 1978 | 58 | 0 |
| 1979 | 53 | 0 |
| 1980 | 73 | 0 |
| 1981 | 76 | 0 |
| 1982 | 49 | 0 |
| 1983 | 60 | 0 |
| 1984 | 68 | 0 |
| 1985 | 76 | 0 |
| 1986 | 83 | 0 |
| 1987 | 97 | 0 |
| 1988 | 75 | 0 |
| 1989 | 107 | 0 |
| 1990 | 113 | 0 |
| 1991 | 117 | 0 |
| 1992 | 100 | 0 |
| 1993 | 99 | 0 |
| 1994 | 105 | 0 |
| 1995 | 94 | 0 |
| 1996 | 89 | 0 |
| 1997 | 113 | 0 |
| 1998 | 121 | 0 |
| 1999 | 129 | 0 |
| 2000 | 118 | 0 |
| 2001 | 126 | 31 |
| 2002 | 98 | 108 |
| 2003 | 84 | 124 |
| 2004 | 69 | 133 |
| 2005 | 82 | 193 |
| 2006 | 73 | 153 |
| 2007 | 48 | 162 |
| 2008 | 51 | 131 |
| 2009 | 42 | 133 |
| 2010 | 84 | 105 |
| 2011 | 60 | 97 |
| 2012 | 58 | 108 |
| 2013 | 58 | 101 |
| 2014 | 61 | 140 |
| 2015 | 72 | 120 |
| 2016 | 90 | 72 |
| 2017 | 72 | 75 |
| 2018 | 84 | 76 |
| 2019 | 65 | 45 |
| 2020 | 51 | 51 |
| 2021 | 38 | 48 |
| 2022 | 33 | 29 |
| 2023 | 32 | 26 |
| 2024 | 19 | 28 |
| 2025 | 21 | 18 |
| 2026 | 7 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- B42F 13/00Filing appliances with means for engaging perforations or slots1,112
- B42F 7/00Filing appliances without fastening means760
- B42F 21/00Indexing means456
- B42F 15/00Suspended filing appliances390
- B42F 17/00Card-filing arrangements348
- B42F 1/00Sheets temporarily attached together without perforating334
- B42F 5/00Sheets and objects temporarily attached together316
- B42F 9/00Filing appliances with devices clamping file edges249
Recent patents
- Insertable index card for card sheets8 Sep 2026US 12,728,663 B2
- Holder housing tool and file1 Sep 2026US 12,722,415 B2King Jim Co., Ltd.
- Vertically oriented clip and/or fastener25 Aug 2026US 12,716,436 B1
- Stationery organizer5 May 2026US 12,617,225 B2
- Paper-made binder, and manufacturing method and manufacturing apparatus therefor24 Mar 2026US 12,583,149 B2
- File8 Oct 2026US 2026/0307426 A1King Jim Co., Ltd.
- Clamping device for a plurality of sheets of paper30 Jul 2026US 2026/0217051 A1Bi-Silque, S.A.
- Clear vision certified collectibles display16 Jul 2026US 2026/0198712 A1Radix Information Technology, Inc.
- Filing Placeholder Device9 Jul 2026US 2026/0192590 A1
- Portable Clipboard System and Method of Use25 Jun 2026US 2026/0175612 A1
Most cited
By later US patents