B41J 2/16523
Waste ink transport from caps or spittoons
Official title: {Waste ink transport from caps or spittoons, e.g. by suction (Collecting or collectors of waste ink B41J2/1721)}
B41J2/16523 (Waste ink transport from caps or spittoons) appears on 739 US grants and 734 published applications in this corpus.
Search patents in B41J- Granted patents
- 739
- Published applications
- 734
- Assignees
- 88
- Inventors
- 1,079
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 16 | 0 |
| 2001 | 16 | 2 |
| 2002 | 12 | 11 |
| 2003 | 9 | 9 |
| 2004 | 10 | 5 |
| 2005 | 5 | 17 |
| 2006 | 5 | 16 |
| 2007 | 5 | 23 |
| 2008 | 13 | 26 |
| 2009 | 11 | 20 |
| 2010 | 15 | 10 |
| 2011 | 19 | 14 |
| 2012 | 17 | 20 |
| 2013 | 23 | 21 |
| 2014 | 32 | 26 |
| 2015 | 33 | 35 |
| 2016 | 37 | 30 |
| 2017 | 25 | 50 |
| 2018 | 43 | 46 |
| 2019 | 54 | 51 |
| 2020 | 45 | 52 |
| 2021 | 42 | 54 |
| 2022 | 35 | 45 |
| 2023 | 35 | 41 |
| 2024 | 33 | 51 |
| 2025 | 45 | 36 |
| 2026 | 28 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid ejection apparatus15 Sep 2026US 12,734,797 B2Brother Kogyo Kabushiki Kaisha
- Inkjet recording apparatus1 Sep 2026US 12,722,378 B2KYOCERA Document Solutions Inc.
- Printing apparatus including a plurality of print heads for ejecting ink and a maintenance unit for performing maintenance on the print heads25 Aug 2026US 12,715,218 B2Canon Kabushiki Kaisha
- Ink-jet recording apparatus11 Aug 2026US 12,703,183 B2KYOCERA Document Solutions Inc.
- Head life evaluation apparatus and method4 Aug 2026US 12,699,025 B2Semes Co., Ltd.
- Liquid ejection apparatus1 Oct 2026US 2026/0296028 A1Canon Kabushiki Kaisha
- Printing device and printing method20 Aug 2026US 2026/0241727 A1Mimaki Engineering Co., Ltd.
- Recording apparatus and control method thereof13 Aug 2026US 2026/0233528 A1Seiko Epson Corporation
- Liquid ejection apparatus30 Jul 2026US 2026/0217020 A1Seiko Epson Corporation
- Liquid ejection apparatus and control method for liquid ejection apparatus30 Jul 2026US 2026/0217033 A1Seiko Epson Corporation
Most cited
By later US patents
- Ink jet recording apparatus with waste ink distribution paths to plural cartridges158US 4,965,596 ACanon Kabushiki Kaisha · 1990
- Ink jet recording apparatus140US 4,577,203 AEpson Corporation · 1986
- Method for refilling liquid into a liquid reservoir container, a liquid jet recording apparatus using such method, a liquid refilling container, a liquid reservoir container, and a head cartridge128US 6,022,102 ACanon Kabushiki Kaisha · 2000
- Ink jet printer with cartridge having integral ink storage chamber110US 5,801,736 ACanon Aptex Inc. · 1998
- Capping carriage for ink jet printer maintenance station105US 5,339,102 AXerox Corporation · 1994