B41J 2/1728
Closed waste ink collectors
Official title: {Closed waste ink collectors}
B41J2/1728 (Closed waste ink collectors) appears on 192 US grants and 208 published applications in this corpus.
Search patents in B41J- Granted patents
- 192
- Published applications
- 208
- Assignees
- 36
- Inventors
- 435
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 2 | 8 |
| 2003 | 10 | 8 |
| 2004 | 6 | 3 |
| 2005 | 5 | 9 |
| 2006 | 2 | 1 |
| 2007 | 1 | 1 |
| 2008 | 4 | 8 |
| 2009 | 2 | 6 |
| 2010 | 1 | 1 |
| 2011 | 5 | 1 |
| 2012 | 2 | 4 |
| 2013 | 3 | 4 |
| 2014 | 7 | 6 |
| 2015 | 7 | 3 |
| 2016 | 4 | 6 |
| 2017 | 7 | 5 |
| 2018 | 4 | 7 |
| 2019 | 8 | 7 |
| 2020 | 6 | 18 |
| 2021 | 11 | 27 |
| 2022 | 17 | 13 |
| 2023 | 9 | 13 |
| 2024 | 11 | 18 |
| 2025 | 12 | 16 |
| 2026 | 9 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Inkjet recording apparatus1 Sep 2026US 12,722,378 B2KYOCERA Document Solutions Inc.
- Ink-jet recording apparatus11 Aug 2026US 12,703,183 B2KYOCERA Document Solutions Inc.
- Liquid ejecting apparatus23 Jun 2026US 12,661,897 B2Seiko Epson Corporation
- Liquid ejecting device26 May 2026US 12,636,889 B2Seiko Epson Corporation
- Inkjet recording device12 May 2026US 12,623,464 B2KYOCERA Document Solutions Inc.
- Liquid ejecting apparatus and method for reusing liquid accommodating body27 Aug 2026US 2026/0249615 A1Seiko Epson Corporation
- Printing apparatus20 Aug 2026US 2026/0241729 A1Canon Kabushiki Kaisha
- Recording apparatus and control method thereof13 Aug 2026US 2026/0233528 A1Seiko Epson Corporation
- Liquid ejection apparatus25 Jun 2026US 2026/0175604 A1Seiko Epson Corporation
- Inkjet printing device30 Apr 2026US 2026/0116088 A1Makeblock Co., Ltd.
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 apparatus having rotary drum with ink receptor112US 5,517,222 ACanon Kabushiki Kaisha · 1996
- Ink storing apparatus with a first case having plural ink tanks and second case having one ink tank and a waste ink receptacle96US 4,695,824 ACanon Kabushiki Kaisha · 1987
- Cartridge for ink jet printer and ink jet printer94US 6,050,672 ASeiko Epson Corporation · 2000
- Ink jet recording apparatus having a space saving ink recovery system87US 5,040,000 ACanon Kabushiki Kaisha · 1991