B41J 9/04
Of single hammers
Official title: of single hammers, e.g. travelling along printing line
B41J9/04 (Of single hammers) appears on 35 US grants and 1 published applications in this corpus.
Search patents in B41J- Granted patents
- 35
- Published applications
- 1
- Assignees
- 17
- Inventors
- 57
- Latest grant
- 29 Jul 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 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 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Line printer hammer banks29 Jul 2014US 8,789,922 B2Printronix, Inc.
- Line printer hammer banks25 Feb 2014US 8,657,409 B1Printronix, Inc.
- Printing hammer device4 Dec 1990US 4,974,976 ABrother Kogyo Kabushiki Kaisha
- Typewriter with a print wheel and hammer driven by one motor20 Feb 1990US 4,902,148 ATa Triumph-Adler Aktiengesellschaft
- Impact mechanism for impact printer17 Oct 1989US 4,874,265 AXerox Corporation
Most cited
By later US patents
- Rotary wheel printer22US 4,565,128 AAlps Electric Co., Ltd. · 1986
- Rotary wheel printer19US 4,856,921 AAlps Electric Co., Ltd. · 1989
- Printing apparatus for cash register12US 4,018,154 ARicoh Company, Ltd. · 1977
- Impact printer hammer assembly10US 4,239,401 APlessey Peripheral Systems · 1980
- Hammer support for rotary printing apparatus7US 4,236,842 AA. B. Dick Company · 1980