F04B 2205/065
Between two stages in a multi-stage pump
Official title: between two stages in a multi-stage pump
F04B2205/065 (Between two stages in a multi-stage pump) appears on 6 US grants and 5 published applications in this corpus.
Search patents in F04B- Granted patents
- 6
- Published applications
- 5
- Assignees
- 6
- Inventors
- 18
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Process for operating a dry-compression vacuum pump as well as a suitable vacuum pump for implementation of this process2 Nov 1999US 5,975,857 ALeybold Aktiengesellschaft
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- Liquid Feeding Pump and Liquid Feeding Method19 Oct 2023US 2023/0332586 A1Hitachi High-Tech Corporation
- Hydraulic pressure intensifier6 Sep 2018US 2018/0252241 A1Pistonpower Aps
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- Method for regulating a compressor3 Jan 2013US 2013/0004333 A1Continetal Teves AG & Co. oHG
Most cited
By later US patents
- Apparatus and process for operating a dry-compression vacuum pump11US 5,718,565 ALeybold Aktiengesellschaft · 1998
- Process for operating a dry-compression vacuum pump as well as a suitable vacuum pump for implementation of this process3US 5,975,857 ALeybold Aktiengesellschaft · 1999
- Pressure increasing system and method of increasing gas pressure1US 10,190,600 B2Mitsubishi Heavy Industries Compressor Corporation · 2019
- Compressor temperature control by indirect temperature measurement1US 9,243,627 B2Continetal Teves AG & Co. oHG · 2016