F04B 2201/0605
Leakage over a valve
F04B2201/0605 (Leakage over a valve) appears on 25 US grants and 27 published applications in this corpus.
Search patents in F04B- Granted patents
- 25
- Published applications
- 27
- Assignees
- 22
- Inventors
- 37
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 6 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 6 |
| 2020 | 3 | 1 |
| 2021 | 1 | 2 |
| 2022 | 3 | 3 |
| 2023 | 2 | 2 |
| 2024 | 2 | 0 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Monitoring method for monitoring the operation of a dosing pump and dosing pump system11 Aug 2026US 12,704,120 B2Grundfos Holding A/S
- Medical fluid pumping system having backflow prevention19 Aug 2025US 12,392,335 B2Baxter Healthcare S. A.
- Diaphragm pump20 May 2025US 12,305,629 B2Mabuchi Motor Oken Co., Ltd.
- Membrane pump usage condition detection10 Dec 2024US 12,163,513 B2Quanta Dialysis Technologies Limited
- Liquid feeding device17 Sep 2024US 12,092,099 B2Shimadzu Corporation
- Method for determining a leak rate in a displacement pump18 Dec 2025US 2025/0382957 A1Tecan Trading AG
- Membrane pump usage condition detection28 Aug 2025US 2025/0270992 A1Quanta Dialysis Technologies Limited
- Method and apparatus for recovery of leaking gases from compression and regulation systems28 Dec 2023US 2023/0417239 A1
- Diaphragm pump2 Nov 2023US 2023/0349372 A1Mabuchi Motor Oken Co., Ltd.
- Monitoring method for monitoring the operation of a dosing pump and dosing pump system29 Dec 2022US 2022/0412334 A1Grundfos Holding A/S
Most cited
By later US patents
- Free-diaphragm pump82US 6,106,246 ATrebor International, Inc. · 2000
- Free-diaphragm pump71US 6,402,486 B1Trebor International, Inc. · 2002
- Diaphragm pump and related methods54US 8,197,231 B2Purity Solutions LLC · 2012
- Method and apparatus for real time compensation of fluid compressibility in high pressure reciprocating pumps43US 5,108,264 AHewlett-Packard Company · 1992
- Fiber optics systems for high purity pump diagnostics37US 6,695,593 B1Trebor International, Inc. · 2004