F04B 23/023
Only the pump-part being immersed, the driving-part being outside the reservoir
Official title: {only the pump-part being immersed, the driving-part being outside the reservoir}
F04B23/023 (Only the pump-part being immersed, the driving-part being outside the reservoir) appears on 90 US grants and 79 published applications in this corpus.
Search patents in F04B- Granted patents
- 90
- Published applications
- 79
- Assignees
- 61
- Inventors
- 230
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 3 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 3 | 3 |
| 2016 | 1 | 7 |
| 2017 | 1 | 1 |
| 2018 | 4 | 4 |
| 2019 | 3 | 10 |
| 2020 | 6 | 4 |
| 2021 | 3 | 8 |
| 2022 | 6 | 3 |
| 2023 | 3 | 9 |
| 2024 | 3 | 3 |
| 2025 | 8 | 6 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Fluid discharging device50US 4,795,063 APentel Kabushiki Kaisha · 1989
- Hot melt dispenser with removeable pump in follower35US 4,073,409 AFluid Kinetics, Inc. · 1978
- High pressure cryogenic pumping system21US 5,819,544 A1998
- Apparatus for supplying liquid color21US 7,416,096 B22008
- Single drive motor device particularly to supply fluid conveyance tandem line systems19US 4,143,995 ADROPSA S.p.A. · 1979