B41J 2002/17576
Using a floater for ink level indication
Official title: {using a floater for ink level indication}
B41J2002/17576 (Using a floater for ink level indication) appears on 272 US grants and 238 published applications in this corpus.
Search patents in B41J- Granted patents
- 272
- Published applications
- 238
- Assignees
- 44
- Inventors
- 306
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 6 |
| 2002 | 8 | 13 |
| 2003 | 7 | 2 |
| 2004 | 8 | 1 |
| 2005 | 3 | 3 |
| 2006 | 3 | 3 |
| 2007 | 2 | 7 |
| 2008 | 3 | 1 |
| 2009 | 3 | 7 |
| 2010 | 3 | 9 |
| 2011 | 6 | 3 |
| 2012 | 6 | 2 |
| 2013 | 6 | 6 |
| 2014 | 7 | 5 |
| 2015 | 7 | 4 |
| 2016 | 8 | 18 |
| 2017 | 14 | 10 |
| 2018 | 7 | 21 |
| 2019 | 16 | 32 |
| 2020 | 33 | 19 |
| 2021 | 16 | 13 |
| 2022 | 14 | 14 |
| 2023 | 13 | 21 |
| 2024 | 15 | 5 |
| 2025 | 8 | 8 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Ink jet printer and ink supply method of ink jet printer16 Jun 2026US 12,654,462 B2Brother Kogyo Kabushiki Kaisha
- Liquid cartridge9 Jun 2026US 12,649,315 B2Brother Kogyo Kabushiki Kaisha
- Image forming apparatus and computer-readable storage medium3 Mar 2026US 12,565,048 B2Brother Kogyo Kabushiki Kaisha
- Inkjet recording apparatus8 Oct 2026US 2026/0307394 A1KYOCERA Document Solutions Inc.
- Inkjet recording apparatus8 Oct 2026US 2026/0307395 A1KYOCERA Document Solutions Inc.
- Liquid accommodation body and liquid ejection device21 May 2026US 2026/0138373 A1Seiko Epson Corporation
- Liquid cartridge9 Apr 2026US 2026/0097587 A1Brother Kogyo Kabushiki Kaisha
- Liquid storage unit, liquid supply unit, and liquid ejection device26 Feb 2026US 2026/0054490 A1Seiko Epson Corporation
Most cited
By later US patents
- Apparatus controlled by data from consumable parts with incorporated memory devices266US 5,812,156 AHewlett-Packard Company · 1998
- Automatic ink refill system for disposable ink jet cartridges160US 5,367,328 ALaserMaster Corporation · 1994
- System for registration of a fluid level in a receptacle128US 6,554,381 B2Pelikan Produktions AG · 2003
- Ink delivery system adapter126US 6,130,695 AHewlett-Packard Company · 2000
- Printer using print cartridge with internal pressure regulator110US 5,852,459 AHewlett-Packard Company · 1998