B41F 21/00
Devices for conveying sheets through printing apparatus or machines
Official title: Devices for conveying sheets through printing apparatus or machines (through platen presses B41F1/28)
B41F21/00 (Devices for conveying sheets through printing apparatus or machines) appears on 829 US grants and 444 published applications in this corpus.
Search patents in B41F- Granted patents
- 829
- Published applications
- 444
- Assignees
- 202
- Inventors
- 1,009
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 14 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 11 | 0 |
| 1981 | 6 | 0 |
| 1982 | 10 | 0 |
| 1983 | 14 | 0 |
| 1984 | 10 | 0 |
| 1985 | 10 | 0 |
| 1986 | 14 | 0 |
| 1987 | 13 | 0 |
| 1988 | 27 | 0 |
| 1989 | 34 | 0 |
| 1990 | 15 | 0 |
| 1991 | 19 | 0 |
| 1992 | 19 | 0 |
| 1993 | 27 | 0 |
| 1994 | 12 | 0 |
| 1995 | 26 | 0 |
| 1996 | 28 | 0 |
| 1997 | 18 | 0 |
| 1998 | 28 | 0 |
| 1999 | 26 | 0 |
| 2000 | 19 | 0 |
| 2001 | 20 | 16 |
| 2002 | 17 | 39 |
| 2003 | 37 | 19 |
| 2004 | 27 | 24 |
| 2005 | 26 | 16 |
| 2006 | 15 | 18 |
| 2007 | 9 | 19 |
| 2008 | 16 | 29 |
| 2009 | 7 | 13 |
| 2010 | 12 | 18 |
| 2011 | 8 | 7 |
| 2012 | 8 | 10 |
| 2013 | 10 | 15 |
| 2014 | 16 | 19 |
| 2015 | 9 | 11 |
| 2016 | 22 | 21 |
| 2017 | 15 | 20 |
| 2018 | 21 | 18 |
| 2019 | 12 | 22 |
| 2020 | 17 | 18 |
| 2021 | 23 | 20 |
| 2022 | 13 | 11 |
| 2023 | 11 | 11 |
| 2024 | 9 | 6 |
| 2025 | 10 | 16 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Feeder module1 Sep 2026US 12,722,917 B2Bobst Mex SA
- Converting machine with inversion transfer module1 Sep 2026US 12,722,924 B2Bobst Lyon
- Machine for handling sheets, comprising an inspection device and a sensor adjustment path in the clear width25 Aug 2026US 12,716,848 B2Koenig & Bauer Aktiengesellschaft
- Conveyance device and conveyance method18 Aug 2026US 12,709,092 B2Fuji Corporation
- Machine for producing 3D screen-printed articles7 Jul 2026US 12,673,485 B2Exentis Knowledge GmbH
- Layer Transfer Device30 Jul 2026US 2026/0217017 A1Brother Kogyo Kabushiki Kaisha
- Printing apparatus and method of producing printed object2 Jul 2026US 2026/0184064 A1Shuhou Co., Ltd.
- Machine for handling sheets, comprising an inspection device and a sensor adjustment path in the clear width30 Apr 2026US 2026/0118283 A1Koenig & Bauer Aktiengesellschaft
- Pad printing carrier and transmission device12 Feb 2026US 2026/0042286 A1Suzhou Cai Machine Group Co., Ltd.
- Batch alignment device for screen printer and batch alignment method using same12 Feb 2026US 2026/0047012 A1
Most cited
By later US patents
- Magnetic media holder for printer144US 9,656,487 B2Intermec Technologies Corporation · 2017
- Vacuum drum with countersunk holes69US 6,043,836 AEastman Kodak Company · 2000
- Printing-machine cylinder, especially an impression cylinder, for a sheet-fed rotary printing machine, and method of production67US 6,581,517 B1Heidelberger Druckmaschinen AG · 2003
- Sheet-fed rotary printing machine with printing units arranged in tandem55US 4,856,426 AHeidelberger Druckmaschinen AG · 1989
- Sheet transferring apparatus for printing machine50US 5,406,884 ASakurai Graphic Systems Corporation · 1995