B41J 19/20
Positive-feed character-spacing mechanisms
Official title: Positive-feed character-spacing mechanisms (controlled by escapements B41J19/52)
B41J19/20 (Positive-feed character-spacing mechanisms) appears on 1,264 US grants and 877 published applications in this corpus.
Search patents in B41J- Granted patents
- 1,264
- Published applications
- 877
- Assignees
- 257
- Inventors
- 1,935
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 13 | 0 |
| 1978 | 10 | 0 |
| 1979 | 11 | 0 |
| 1980 | 9 | 0 |
| 1981 | 17 | 0 |
| 1982 | 13 | 0 |
| 1983 | 10 | 0 |
| 1984 | 13 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 15 | 0 |
| 1988 | 15 | 0 |
| 1989 | 17 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 20 | 0 |
| 1993 | 13 | 0 |
| 1994 | 16 | 0 |
| 1995 | 22 | 0 |
| 1996 | 27 | 0 |
| 1997 | 24 | 0 |
| 1998 | 29 | 0 |
| 1999 | 30 | 0 |
| 2000 | 36 | 0 |
| 2001 | 38 | 14 |
| 2002 | 45 | 33 |
| 2003 | 52 | 53 |
| 2004 | 40 | 65 |
| 2005 | 41 | 77 |
| 2006 | 52 | 50 |
| 2007 | 33 | 62 |
| 2008 | 47 | 43 |
| 2009 | 29 | 40 |
| 2010 | 46 | 35 |
| 2011 | 43 | 35 |
| 2012 | 40 | 29 |
| 2013 | 38 | 58 |
| 2014 | 39 | 27 |
| 2015 | 39 | 20 |
| 2016 | 30 | 20 |
| 2017 | 18 | 25 |
| 2018 | 21 | 22 |
| 2019 | 23 | 24 |
| 2020 | 18 | 37 |
| 2021 | 30 | 27 |
| 2022 | 15 | 25 |
| 2023 | 19 | 33 |
| 2024 | 25 | 12 |
| 2025 | 21 | 4 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carriage apparatus, printing apparatus, and control method thereof29 Sep 2026US 12,746,768 B2Canon Kabushiki Kaisha
- Printing apparatus15 Sep 2026US 12,734,836 B2Canon Kabushiki Kaisha
- Printing apparatus, control method for printing apparatus, and computer-readable storage medium storing computer-executable instructions for printing apparatus5 May 2026US 12,618,695 B2Brother Kogyo Kabushiki Kaisha
- Fluid-ejection device air purger detection14 Apr 2026US 12,600,145 B2Hewlett-Packard Development Company, L. P.
- Liquid discharge apparatus17 Feb 2026US 12,552,184 B2Brother Kogyo Kabushiki Kaisha
- Image forming system, and method for identifying abnormality in image forming system20 Aug 2026US 2026/0241730 A1Brother Kogyo Kabushiki Kaisha
- Fluid-ejection device air purger detection23 Jul 2026US 2026/0208495 A1Hewlett-Packard Development Company, L. P.
- Inkjet printer23 Jul 2026US 2026/0208516 A1Mimaki Engineering Co., Ltd.
- Recording apparatus and method for controlling recording apparatus16 Jul 2026US 2026/0200254 A1Seiko Epson Corporation
- Recording apparatus4 Jun 2026US 2026/0152015 A1Seiko Epson Corporation
Most cited
By later US patents
- Small printer205US 4,436,439 AEpson Corporation · 1984
- Method and system for object selection163US 6,720,985 B1Silverbrook Research Pty Ltd · 2004
- Printing medium management apparatus149US 5,751,303 ALaserMaster Corporation · 1998
- Ink jet recording apparatus recording images when an ink jet recording head is installed thereon and reading images when an image reading head is installed thereon140US 6,091,514 ACanon Kabushiki Kaisha · 2000
- Method for laser-discharge imaging a printing plate135US 5,351,617 APresstek, Inc. · 1994