B41J 2/16517
Cleaning of print head nozzles
Official title: {Cleaning of print head nozzles (B41J2/16505, B41J2/1707 take precedence)}
B41J2/16517 (Cleaning of print head nozzles) appears on 4,973 US grants and 5,080 published applications in this corpus.
Search patents in B41J- Granted patents
- 4,973
- Published applications
- 5,080
- Assignees
- 430
- Inventors
- 5,781
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 12 | 0 |
| 1987 | 2 | 0 |
| 1988 | 9 | 0 |
| 1989 | 13 | 0 |
| 1990 | 21 | 0 |
| 1991 | 12 | 0 |
| 1992 | 24 | 0 |
| 1993 | 23 | 0 |
| 1994 | 18 | 0 |
| 1995 | 37 | 0 |
| 1996 | 59 | 0 |
| 1997 | 49 | 0 |
| 1998 | 80 | 0 |
| 1999 | 94 | 0 |
| 2000 | 109 | 0 |
| 2001 | 145 | 39 |
| 2002 | 116 | 135 |
| 2003 | 148 | 107 |
| 2004 | 106 | 122 |
| 2005 | 80 | 219 |
| 2006 | 82 | 128 |
| 2007 | 91 | 207 |
| 2008 | 142 | 220 |
| 2009 | 124 | 222 |
| 2010 | 213 | 191 |
| 2011 | 160 | 260 |
| 2012 | 172 | 177 |
| 2013 | 227 | 202 |
| 2014 | 281 | 180 |
| 2015 | 228 | 204 |
| 2016 | 210 | 194 |
| 2017 | 147 | 234 |
| 2018 | 213 | 221 |
| 2019 | 219 | 233 |
| 2020 | 214 | 265 |
| 2021 | 204 | 267 |
| 2022 | 174 | 269 |
| 2023 | 180 | 230 |
| 2024 | 188 | 233 |
| 2025 | 175 | 181 |
| 2026 | 127 | 140 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B41J 2/1652By driving a fluid through the nozzles to the outside thereof2,585
- B41J 2/16535Using wiping constructions2,181
- B41J 2/16552Using cleaning fluids914
- B41J 2002/16573Cleaning process logicIndexing code375
- B41J 2002/1657Cleaning of only nozzles or print head parts being selectedIndexing code101
- B41J 2002/16576Cleaning means pushed or actuated by print head movementIndexing code55
- B41J 2002/16567Using ultrasonic or vibrating meansIndexing code49
- B41J 2002/16564Heating means thereforIndexing code27
All 9 subgroupsShow fewer
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Most cited
By later US patents
- Purging system for ink jet recording apparatus281US 4,558,326 AKonishiroku Photo Industry Co., Ltd. · 1985
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- Air supply arrangement for a printer251US 6,281,912 B1Silverbrook Research Pty Ltd · 2001
- Method and apparatus for prototyping a three-dimensional object251US 6,375,874 B1Z Corporation · 2002