B41L 21/00
Devices for conveying sheets or webs of copy material through the apparatus
Official title: Devices for conveying sheets or webs of copy material through the apparatus or machines for manifolding, duplicating, or printing (mechanisms for conveying copy material through addressographs or like series-printing machines B41L47/24; {feeding sheets or webs to or from printing apparatus or machines B65H; in printing presses in general B41F21/00})
B41L21/00 (Devices for conveying sheets or webs of copy material through the apparatus) appears on 43 US grants and 10 published applications in this corpus.
Search patents in B41L- Granted patents
- 43
- Published applications
- 10
- Assignees
- 18
- Inventors
- 77
- Latest grant
- 6 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 7 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Identifying printing substrate types6 Jul 2021US 11,052,682 B2Hewlett-Packard Development Company, L. P.
- Paper feeding device27 Mar 2018US 9,926,154 B1Foxlink Image Technology Co., Ltd.
- Printing device with mixed sheet stacking control21 Nov 2017US 9,821,583 B2Canon Kabushiki Kaisha
- Screen printing machine4 Oct 2016US 9,457,605 B2Yamaha Hatsudoki Kabushiki Kaisha
- Sheet processing device and image forming system3 Mar 2015US 8,967,610 B2Ricoh Company, Ltd.
- Automatic Document Feeder With One Belt And One Tensioner For All Drive Rollers To Keep Them Synchronized And Reduced Scan Image Errors6 Jan 2022US 2022/0001683 A1Hewlett-Packard Development Company, L. P.
- Identifying printing substrate types25 Jul 2019US 2019/0224994 A1Hewlett-Packard Development Company, L. P.
- Printing apparatus and method of controlling the same, and storage medium25 Feb 2016US 2016/0052320 A1Canon Kabushiki Kaisha
- Duplex section2 Oct 2014US 2014/0293305 A1Hewlett-Packard Indigo B. V.
- Screen printing machine24 Apr 2014US 2014/0109779 A1Yamaha Hatsudoki Kabushiki Kaisha
Most cited
By later US patents
- Duplexing copying system27US 4,186,662 AA. B. Dick Company · 1980
- Document endorser apparatus25US 4,220,084 AMagnetic Peripherals Inc. · 1980
- Transport system for advancing copy sheets through tandem duplicating system25US 4,236,814 AA. B. Dick Company · 1980
- Sheet feeding device for a printer25US 6,298,778 B1Tohoku Ricoh Co., Ltd. · 2001
- Process and installation for the production of documentation23US 4,611,799 A1986