B41J 19/18
Character-spacing or back-spacing mechanisms
Official title: Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
B41J19/18 (Character-spacing or back-spacing mechanisms) appears on 1,311 US grants and 894 published applications in this corpus.
Search patents in B41J- Granted patents
- 1,311
- Published applications
- 894
- Assignees
- 268
- Inventors
- 2,004
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 15 | 0 |
| 1978 | 11 | 0 |
| 1979 | 12 | 0 |
| 1980 | 12 | 0 |
| 1981 | 20 | 0 |
| 1982 | 16 | 0 |
| 1983 | 12 | 0 |
| 1984 | 17 | 0 |
| 1985 | 13 | 0 |
| 1986 | 11 | 0 |
| 1987 | 16 | 0 |
| 1988 | 15 | 0 |
| 1989 | 17 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 22 | 0 |
| 1993 | 14 | 0 |
| 1994 | 17 | 0 |
| 1995 | 24 | 0 |
| 1996 | 29 | 0 |
| 1997 | 25 | 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 | 63 |
| 2008 | 47 | 44 |
| 2009 | 29 | 40 |
| 2010 | 47 | 36 |
| 2011 | 43 | 35 |
| 2012 | 41 | 30 |
| 2013 | 39 | 60 |
| 2014 | 40 | 28 |
| 2015 | 40 | 20 |
| 2016 | 30 | 20 |
| 2017 | 18 | 25 |
| 2018 | 22 | 27 |
| 2019 | 26 | 24 |
| 2020 | 19 | 37 |
| 2021 | 30 | 27 |
| 2022 | 15 | 26 |
| 2023 | 19 | 34 |
| 2024 | 26 | 13 |
| 2025 | 22 | 5 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B41J 19/20Positive-feed character-spacing mechanisms1,264
- B41J 19/68Carriage-return mechanisms14
- B41J 19/34Escapement-feed character-spacing mechanisms12
- B41J 19/60Auxiliary feed or adjustment devices12
- B41J 19/66Carriage-release mechanisms1
- B41J 19/74With special means to maintain character-spacing or back- spacing elements in engagement0
Recent patents
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- 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
- Test pattern forming method, adjustment value determination method, and printing apparatus17 Sep 2026US 2026/0273976 A1Seiko Epson Corporation
- 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
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