B41J 2/1721
Collecting waste ink
Official title: {Collecting waste ink; Collectors therefor}
B41J2/1721 (Collecting waste ink) appears on 911 US grants and 1,067 published applications in this corpus.
Search patents in B41J- Granted patents
- 911
- Published applications
- 1,067
- Assignees
- 132
- Inventors
- 1,430
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 11 | 0 |
| 2001 | 14 | 2 |
| 2002 | 10 | 23 |
| 2003 | 24 | 22 |
| 2004 | 20 | 22 |
| 2005 | 13 | 82 |
| 2006 | 12 | 27 |
| 2007 | 25 | 43 |
| 2008 | 54 | 80 |
| 2009 | 32 | 65 |
| 2010 | 63 | 51 |
| 2011 | 60 | 44 |
| 2012 | 41 | 29 |
| 2013 | 39 | 18 |
| 2014 | 40 | 30 |
| 2015 | 32 | 20 |
| 2016 | 23 | 25 |
| 2017 | 20 | 22 |
| 2018 | 19 | 38 |
| 2019 | 42 | 28 |
| 2020 | 26 | 50 |
| 2021 | 41 | 75 |
| 2022 | 43 | 53 |
| 2023 | 48 | 49 |
| 2024 | 35 | 66 |
| 2025 | 41 | 56 |
| 2026 | 40 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Inkjet printing device6 Oct 2026US 12,752,549 B2Makeblock Co., Ltd.
- Recording device6 Oct 2026US 12,752,557 B2Seiko Epson Corporation
- Liquid ejecting device with support portion that reduces sagging of a print medium29 Sep 2026US 12,747,121 B2Seiko Epson Corporation
- Inkjet recording device22 Sep 2026US 12,741,469 B2KYOCERA Document Solutions Inc.
- Printing apparatus15 Sep 2026US 12,734,812 B2Seiko Epson Corporation
- Inkjet recording apparatus8 Oct 2026US 2026/0307391 A1KYOCERA Document Solutions Inc.
- Inkjet recording apparatus8 Oct 2026US 2026/0307392 A1KYOCERA Document Solutions Inc.
- Liquid ejection apparatus1 Oct 2026US 2026/0296028 A1Canon Kabushiki Kaisha
- Liquid ejection head and liquid ejection apparatus24 Sep 2026US 2026/0285047 A1Canon Kabushiki Kaisha
- Liquid conveyance device and inkjet recording apparatus24 Sep 2026US 2026/0285052 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Purging system for ink jet recording apparatus281US 4,558,326 AKonishiroku Photo Industry Co., Ltd. · 1985
- Ink jet printer having improved paper transport mechanism160US 5,291,227 ARicoh Company, Ltd. · 1994
- 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