F04C 2270/42
Conditions at the inlet of a pump or machine
F04C2270/42 (Conditions at the inlet of a pump or machine) appears on 17 US grants and 24 published applications in this corpus.
Search patents in F04C- Granted patents
- 17
- Published applications
- 24
- Assignees
- 19
- Inventors
- 55
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 4 |
| 2019 | 1 | 1 |
| 2020 | 3 | 4 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 3 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electric compressor with integrated sensor(s)30 Dec 2025US 12,510,074 B2Mahle International GmbH
- Method for operating a vacuum pump system and vacuum pump system applying such method4 Feb 2025US 12,215,691 B2Atlas Copco Airpower, Naamloze Vennootschap
- Method for detecting and monitoring condensate in an oil system of an oil-injected compressor or vacuum pump31 Dec 2024US 12,180,963 B2Atlas Copco Airpower, Naamloze Vennootschap
- Power saving vacuuming pump system based on complete-bearing-sealing and dry-large-pressure-difference root vacuuming root pumps14 Nov 2023US 11,815,095 B2Elivac Inc.
- Complete bearing-sealed root vacuum pump system capable of promoting vacuum ability of condenser of power plant4 Apr 2023US 11,619,231 B1Elvac Co., Ltd
- Determining tip seal maintenance requirement in scroll pump23 Jul 2026US 2026/0210359 A1Agilent Technologies, Inc.
- Scroll pump and scroll pump inlet valve14 May 2026US 2026/0132789 A1
- Compressor system having integrated ambient sensor18 Sep 2025US 2025/0290510 A1Kaeser Kompressoren SE
- Electric compressor with integrated sensor(s)26 Dec 2024US 2024/0426297 A1Mahle International GmbH
- Method for detecting and monitoring condensate in an oil system of an oil-injected compressor or vacuum pump9 May 2024US 2024/0151230 A1Atlas Copco Airpower, Naamloze Vennootschap
Most cited
By later US patents
- Method for controlling fluid flow through a compressed fluid system41US 6,123,510 AIngersoll-Rand Company · 2000
- Vacuum apparatus and a method of controlling a suction speed thereof9US 6,030,181 APfeiffer Vacuum GmbH · 2000
- Compressor and refrigeration apparatus using the same4US 8,424,327 B2Daikin Industries, Ltd. · 2013
- Scroll-type compressor having injection passage part to establish communication between an external injection pipe and compression chamber, and relief mechanism to establish communication between compression chamber and back pressure chamber2US 10,502,211 B2Daikin Industries, Ltd. · 2019
- Compressor control for increased efficiency2US 10,746,176 B2Trane International Inc. · 2020