F04B 27/0404
Details, component parts specially adapted for such pumps
Official title: {Details, component parts specially adapted for such pumps}
F04B27/0404 (Details, component parts specially adapted for such pumps) appears on 104 US grants and 148 published applications in this corpus.
Search patents in F04B- Granted patents
- 104
- Published applications
- 148
- Assignees
- 96
- Inventors
- 292
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 2 |
| 2003 | 2 | 0 |
| 2004 | 3 | 2 |
| 2005 | 1 | 8 |
| 2006 | 1 | 3 |
| 2007 | 3 | 3 |
| 2008 | 4 | 3 |
| 2009 | 2 | 3 |
| 2010 | 2 | 9 |
| 2011 | 0 | 7 |
| 2012 | 3 | 8 |
| 2013 | 4 | 4 |
| 2014 | 2 | 8 |
| 2015 | 2 | 7 |
| 2016 | 4 | 5 |
| 2017 | 6 | 10 |
| 2018 | 3 | 7 |
| 2019 | 7 | 6 |
| 2020 | 6 | 7 |
| 2021 | 11 | 10 |
| 2022 | 2 | 5 |
| 2023 | 4 | 5 |
| 2024 | 7 | 6 |
| 2025 | 3 | 8 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04B 27/0414Cams32
- F04B 27/0409Pistons26
- F04B 27/0451Particularities relating to the distribution members17
- F04B 27/0423Cylinders14
- F04B 27/0442Supporting and guiding means for the pistons11
- F04B 27/0428Arrangements for pressing or connecting the pistons against the actuated cam8
- F04B 27/0437Disconnecting the pistons from the actuated cam3
- F04B 27/0446Draining of the engine housing2
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By later US patents
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