B41J 2/17503
Ink cartridges
Official title: {Ink cartridges}
B41J2/17503 (Ink cartridges) appears on 10,922 US grants and 10,893 published applications in this corpus.
Search patents in B41J- Granted patents
- 10,922
- Published applications
- 10,893
- Assignees
- 749
- Inventors
- 8,576
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 15 | 0 |
| 1991 | 11 | 0 |
| 1992 | 19 | 0 |
| 1993 | 28 | 0 |
| 1994 | 33 | 0 |
| 1995 | 44 | 0 |
| 1996 | 77 | 0 |
| 1997 | 96 | 0 |
| 1998 | 147 | 0 |
| 1999 | 205 | 0 |
| 2000 | 268 | 0 |
| 2001 | 339 | 102 |
| 2002 | 281 | 342 |
| 2003 | 285 | 404 |
| 2004 | 367 | 539 |
| 2005 | 314 | 791 |
| 2006 | 449 | 506 |
| 2007 | 452 | 579 |
| 2008 | 499 | 646 |
| 2009 | 395 | 612 |
| 2010 | 532 | 447 |
| 2011 | 645 | 441 |
| 2012 | 407 | 283 |
| 2013 | 421 | 371 |
| 2014 | 408 | 303 |
| 2015 | 387 | 355 |
| 2016 | 369 | 368 |
| 2017 | 341 | 438 |
| 2018 | 370 | 463 |
| 2019 | 430 | 419 |
| 2020 | 398 | 471 |
| 2021 | 387 | 461 |
| 2022 | 375 | 386 |
| 2023 | 337 | 371 |
| 2024 | 273 | 311 |
| 2025 | 291 | 300 |
| 2026 | 175 | 184 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B41J 2/17513Inner structure5,559
- B41J 2/1752Mounting within the printer5,000
- B41J 2/17553Outer structure4,067
- B41J 2/17506Refilling of the cartridge3,332
- B41J 2/17543Cartridge presence detection or type identification2,624
- B41J 2/17556Means for regulating the pressure in the cartridge1,641
- B41J 2/17526Electrical contacts to the cartridge1,640
- B41J 2/17536Protection of cartridges or parts thereof628
All 10 subgroupsShow fewer
Recent patents
- Cushioning member and ink supply device6 Oct 2026US 12,752,539 B2KYOCERA Document Solutions Inc.
- Ink refill container6 Oct 2026US 12,752,540 B2Seiko Epson Corporation
- Fluid ejection device assemblies6 Oct 2026US 12,752,541 B2Hewlett-Packard Development Company, L. P.
- Cartridge mountable to a printing apparatus that ejects liquid onto a print medium for printing6 Oct 2026US 12,752,542 B2Canon Kabushiki Kaisha
- Packaging form for packaging liquid ejection head6 Oct 2026US 12,752,543 B2Canon Kabushiki Kaisha
- Apparatus and method for ink refill of a can decorator8 Oct 2026US 2026/0307393 A1Stolle Machinery Company, LLC
- Inkjet recording apparatus8 Oct 2026US 2026/0307394 A1KYOCERA Document Solutions Inc.
- Electrical device8 Oct 2026US 2026/0307412 A1Canon Kabushiki Kaisha
- Liquid accommodation body and method of pouring liquid into liquid accommodation body1 Oct 2026US 2026/0296035 A1Seiko Epson Corporation
- Liquid supply apparatus, printing system, and printing apparatus1 Oct 2026US 2026/0296036 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Fluid conduction utilizing a reversible unsaturated siphon with tubarc porosity action1,386US 6,766,817 B2Tubarc Technologies, LLC · 2004
- Irrigation and drainage based on hydrodynamic unsaturated fluid flow961US 6,918,404 B2Tubarc Technologies, LLC · 2005
- Ink refill and recharging system947US 7,066,586 B2Tubarc Technologies, LLC · 2006
- Thermal ink jet pen body construction having improved ink storage and feed capability537US 4,771,295 AHewlett-Packard Company · 1988
- Printhead having memory element475US 5,049,898 AHewlett-Packard Company · 1991