F04B 1/0404
Details or component parts
F04B1/0404 (Details or component parts) appears on 1,173 US grants and 1,184 published applications in this corpus.
Search patents in F04B- Granted patents
- 1,173
- Published applications
- 1,184
- Assignees
- 430
- Inventors
- 1,971
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 9 | 0 |
| 1978 | 7 | 0 |
| 1979 | 11 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 15 | 0 |
| 1998 | 12 | 0 |
| 1999 | 15 | 0 |
| 2000 | 14 | 0 |
| 2001 | 35 | 9 |
| 2002 | 37 | 31 |
| 2003 | 36 | 29 |
| 2004 | 29 | 39 |
| 2005 | 20 | 24 |
| 2006 | 16 | 35 |
| 2007 | 15 | 32 |
| 2008 | 17 | 35 |
| 2009 | 11 | 40 |
| 2010 | 28 | 35 |
| 2011 | 22 | 28 |
| 2012 | 25 | 41 |
| 2013 | 30 | 53 |
| 2014 | 29 | 52 |
| 2015 | 26 | 50 |
| 2016 | 42 | 64 |
| 2017 | 47 | 57 |
| 2018 | 41 | 64 |
| 2019 | 73 | 64 |
| 2020 | 65 | 73 |
| 2021 | 52 | 43 |
| 2022 | 57 | 46 |
| 2023 | 50 | 75 |
| 2024 | 54 | 64 |
| 2025 | 69 | 63 |
| 2026 | 50 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04B 1/0452Distribution members349
- F04B 1/0408Pistons278
- F04B 1/0421Cylinders216
- F04B 1/0413Cams178
- F04B 1/0426Arrangements for pressing the pistons against the actuated cam173
- F04B 1/0448Sealing means109
- F04B 1/0439Supporting or guiding means for the pistons90
- F04B 1/0443Draining of the housing39
All 9 subgroupsShow fewer
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By later US patents
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