F04B 2201/0604
Valve noise
F04B2201/0604 (Valve noise) appears on 7 US grants and 11 published applications in this corpus.
Search patents in F04B- Granted patents
- 7
- Published applications
- 11
- Assignees
- 11
- Inventors
- 32
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Reciprocating compressor valve system with embedded sensor17 Feb 2026US 12,553,428 B2Nuovo Pignone Tecnologie Srl
- Method for operating a vacuum pump system8 Aug 2023US 11,719,231 B2Leybold Aktiengesellschaft
- Compact pump and diaphragm assembly used therein14 Jul 2020US 10,711,775 B2Mitsumi Electric Co., Ltd.
- Fuel pump and inlet valve assembly thereof16 Jun 2020US 10,683,825 B1Delphi Technologies IP Limited
- Equipment for continuous regulation of the flow rate of reciprocating compressors4 Apr 2017US 9,611,845 B2Dott. Ing. Mario Cozzani S.R.L.
- Reciprocating compressor valve system with embedded sensor23 Jan 2025US 2025/0027489 A1Nuovo Pignone Tecnologie Srl
- Method for operating a vacuum pump system9 Dec 2021US 2021/0381499 A1Leybold Aktiengesellschaft
- Fuel pump and inlet valve assembly thereof4 Jun 2020US 2020/0173391 A1Delphi Technologies IP Limited
- Compact pump and diaphragm assembly used therein3 May 2018US 2018/0119694 A1Mitsumi Electric Co., Ltd.
- Reciprocating compressor flow sensing12 Apr 2018US 2018/0100497 A1General Electric Company
Most cited
By later US patents
- System and method for monitoring the mechanical condition of a reciprocating compressor9US 7,056,097 B2Equistar Chemicals, LP · 2006
- Fuel pump and inlet valve assembly thereof2US 10,683,825 B1Delphi Technologies IP Limited · 2020
- Compact pump and diaphragm assembly used therein1US 10,711,775 B2Mitsumi Electric Co., Ltd. · 2020
- Equipment for continuous regulation of the flow rate of reciprocating compressors1US 9,611,845 B2Dott. Ing. Mario Cozzani S.R.L. · 2017