B41J 2/285
Of plunger type
Official title: of plunger type
B41J2/285 (Of plunger type) appears on 41 US grants and 1 published applications in this corpus.
Search patents in B41J- Granted patents
- 41
- Published applications
- 1
- Assignees
- 26
- Inventors
- 58
- Latest grant
- 27 Apr 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Liquid discharge head, head unit, apparatus for discharging liquid, and liquid discharging method27 Apr 2021US 10,987,927 B2Ricoh Company, Ltd.
- Dot matrix print head with unitary armature assembly and method of operation thereof2 Nov 1999US 5,975,776 AAxiohm Transaction Solutions, Inc.
- Braille printing solenoid housing18 Jun 1996US 5,527,117 AImpact Devices LLC
- Actuation magnet for a printing stylus of a matrix printer10 Dec 1991US 5,071,267 AU. S. Philips Corporation
- Dot matrix print head23 May 1989US 4,832,516 ANCR Corporation
Most cited
By later US patents
- Electromagnetic reciprocating linear actuator with permanent magnet armature133US 4,259,653 AMagnetic Laboratories, Inc. · 1981
- Printer, provided with an impact device comprising a transducer28US 4,192,230 AU. S. Philips Corporation · 1980
- Impact matrix print head solenoid assembly23US 4,046,244 ASycor, Inc. · 1977
- Matrix print head and solenoid driver19US 4,016,965 ANCR Corporation · 1977
- Double speed dot matrix printhead19US 4,079,824 AXerox Corporation · 1978