F04B 23/106
Being an axial piston pump
Official title: {being an axial piston pump}
F04B23/106 (Being an axial piston pump) appears on 85 US grants and 56 published applications in this corpus.
Search patents in F04B- Granted patents
- 85
- Published applications
- 56
- Assignees
- 44
- Inventors
- 123
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 2 |
| 2003 | 3 | 4 |
| 2004 | 6 | 3 |
| 2005 | 1 | 1 |
| 2006 | 5 | 5 |
| 2007 | 6 | 3 |
| 2008 | 6 | 2 |
| 2009 | 2 | 4 |
| 2010 | 3 | 3 |
| 2011 | 1 | 1 |
| 2012 | 3 | 1 |
| 2013 | 0 | 1 |
| 2014 | 2 | 0 |
| 2015 | 3 | 1 |
| 2016 | 1 | 4 |
| 2017 | 1 | 7 |
| 2018 | 3 | 3 |
| 2019 | 4 | 4 |
| 2020 | 4 | 1 |
| 2021 | 5 | 1 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Multi-pressure integrated air pump29 Jan 2026US 2026/0028973 A1Intex Marketing Ltd.
- Hydraulic unit with sequential piston pumps operated by rolling weights23 Oct 2025US 2025/0327444 A1
- Cementing equipment and control method19 Jun 2025US 2025/0198253 A1Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Multi-pressure integrated air pump19 Oct 2023US 2023/0332587 A1Intex Marketing Ltd.
- Multi-pressure integrated air pump7 Jan 2021US 2021/0003120 A1Intex Industries Xiamen Co. Ltd.
Most cited
By later US patents
- Pump94US 6,332,393 B1Hydro-Gear Limited Partnership · 2001
- Dual pump apparatus comprising dual drive shafts and auxiliary pump78US 6,672,843 B1Hydro-Gear Limited Partnership · 2004
- Pump unit77US 6,425,244 B1Kanzaki Kokyukoki Mfg.Co., Ltd. · 2002
- Tandem pump and interface for same57US 6,494,686 B1Hydro-Gear Limited Partnership · 2002
- Hydrostatic axial piston pump with three bearing arrangement40US 5,501,578 ASauer Inc. · 1996