F04B 13/00
Pumps specially modified to deliver fixed or variable measured quantities
F04B13/00 (Pumps specially modified to deliver fixed or variable measured quantities) appears on 973 US grants and 1,073 published applications in this corpus.
Search patents in F04B- Granted patents
- 973
- Published applications
- 1,073
- Assignees
- 627
- Inventors
- 1,998
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 11 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 13 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 16 | 0 |
| 2001 | 17 | 2 |
| 2002 | 11 | 9 |
| 2003 | 11 | 23 |
| 2004 | 18 | 28 |
| 2005 | 15 | 41 |
| 2006 | 15 | 20 |
| 2007 | 11 | 17 |
| 2008 | 12 | 28 |
| 2009 | 7 | 28 |
| 2010 | 10 | 20 |
| 2011 | 18 | 26 |
| 2012 | 17 | 31 |
| 2013 | 22 | 31 |
| 2014 | 24 | 43 |
| 2015 | 18 | 41 |
| 2016 | 31 | 56 |
| 2017 | 40 | 63 |
| 2018 | 40 | 65 |
| 2019 | 74 | 82 |
| 2020 | 69 | 58 |
| 2021 | 62 | 75 |
| 2022 | 54 | 55 |
| 2023 | 53 | 56 |
| 2024 | 74 | 70 |
| 2025 | 41 | 62 |
| 2026 | 42 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for delivering an API-containing liquid to an edible substrate6 Oct 2026US 12,751,915 B2Transport Authority, Inc.
- Syringe pump6 Oct 2026US 12,753,756 B2Fluid Metering, Inc.
- Apparatus for delivering metered fluid at elevated pressure22 Sep 2026US 12,742,443 B1Prince Sattam Bin Abdulaziz University
- Dosing pump with stroke adjustment1 Sep 2026US 12,723,584 B2ProMinent GmbH
- Multi-pressure integrated air pump18 Aug 2026US 12,710,032 B2Intex Marketing Ltd.
- Proportional volumetric dosing unit8 Oct 2026US 2026/0309135 A1Mixtron S.R.L.
- Agricultural sampling system and related methods17 Sep 2026US 2026/0276619 A1Precision Planting LLC
- Molded Piston Seal With Anti-Leak Deported Split Line3 Sep 2026US 2026/0258864 A1Becton, Dickinson and Company
- Variable displacement pump6 Aug 2026US 2026/0226889 A1Micro Matic USA, Inc.
- Automated volume distribution and dosing system30 Jul 2026US 2026/0218691 A1Fenwal, Inc.
Most cited
By later US patents
- Pumping cartridge including a bypass valve and method for directing flow in a pumping cartridge543US 6,416,293 B1DEKA Products Limited Partnership · 2002
- Device and method employing shape memory alloy491US 6,916,159 B2TheraSense, Inc. · 2005
- Methods and systems for pulsed delivery of fluids from a pump296US 6,604,908 B1DEKA Products Limited Partnership · 2003
- Methods for controlling a pump's flow rate by pulsed discharge292US 6,749,403 B2DEKA Products Limited Partnership · 2004
- Linear peristaltic pump249US 6,213,739 B1Niagara Pump Corporation · 2001