B41J 2/19
For removing air bubbles
Official title: for removing air bubbles
B41J2/19 (For removing air bubbles) appears on 1,058 US grants and 1,112 published applications in this corpus.
Search patents in B41J- Granted patents
- 1,058
- Published applications
- 1,112
- Assignees
- 159
- Inventors
- 1,555
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 15 | 0 |
| 2000 | 21 | 0 |
| 2001 | 27 | 2 |
| 2002 | 14 | 25 |
| 2003 | 18 | 20 |
| 2004 | 19 | 13 |
| 2005 | 11 | 81 |
| 2006 | 15 | 24 |
| 2007 | 21 | 28 |
| 2008 | 46 | 82 |
| 2009 | 35 | 74 |
| 2010 | 64 | 58 |
| 2011 | 82 | 47 |
| 2012 | 33 | 29 |
| 2013 | 61 | 50 |
| 2014 | 44 | 32 |
| 2015 | 35 | 44 |
| 2016 | 39 | 31 |
| 2017 | 30 | 53 |
| 2018 | 48 | 65 |
| 2019 | 56 | 76 |
| 2020 | 69 | 46 |
| 2021 | 34 | 32 |
| 2022 | 26 | 30 |
| 2023 | 29 | 36 |
| 2024 | 22 | 30 |
| 2025 | 20 | 49 |
| 2026 | 28 | 55 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bubble stopper object for an ink-jet print head6 Oct 2026US 12,752,546 B2Sicpa Holding SA
- Degassing device and inkjet recording apparatus29 Sep 2026US 12,746,758 B2KYOCERA Document Solutions Inc.
- Deaeration apparatus, inkjet recording apparatus, deaeration method, and storage medium29 Sep 2026US 12,746,759 B2Konica Minolta, Inc.
- Liquid ejection head and liquid ejection apparatus1 Sep 2026US 12,722,390 B2Canon Kabushiki Kaisha
- Degassing device and inkjet recording apparatus1 Sep 2026US 12,722,392 B2KYOCERA Document Solutions Inc.
- Liquid ejection head and liquid ejection apparatus8 Oct 2026US 2026/0307396 A1Canon Kabushiki Kaisha
- Method and System For Detecting and Classifying Air Pockets within Ink Supply Lines8 Oct 2026US 2026/0307397 A1Xerox Corporation
- Liquid ejecting head and liquid ejecting apparatus1 Oct 2026US 2026/0296009 A1Seiko Epson Corporation
- Liquid accommodation body and method of pouring liquid into liquid accommodation body1 Oct 2026US 2026/0296035 A1Seiko Epson Corporation
- Printing apparatus1 Oct 2026US 2026/0296043 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Small printer205US 4,436,439 AEpson Corporation · 1984
- Bubble valve and bubble valve-based pressure regulator184US 6,062,681 AHewlett-Packard Company · 2000
- External manifold for ink jet array158US 4,695,854 APitney Bowes Inc. · 1987
- Ink-jet recording apparatus with mechanism for automatically regulating a recording head145US 4,977,459 ACanon Kabushiki Kaisha · 1990
- Ink jet printing head and printing apparatus using same142US 6,241,350 B1Canon Kabushiki Kaisha · 2001