F04D 27/0269
By changing flow path between different stages or between a plurality of
Official title: {by changing flow path between different stages or between a plurality of compressors; load distribution between compressors}
F04D27/0269 (By changing flow path between different stages or between a plurality of) appears on 100 US grants and 118 published applications in this corpus.
Search patents in F04D- Granted patents
- 100
- Published applications
- 118
- Assignees
- 85
- Inventors
- 291
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
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| 1983 | 0 | 0 |
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| 1985 | 1 | 0 |
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| 1992 | 2 | 0 |
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| 1994 | 3 | 0 |
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| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 3 | 1 |
| 2007 | 1 | 3 |
| 2008 | 0 | 5 |
| 2009 | 3 | 2 |
| 2010 | 3 | 4 |
| 2011 | 0 | 6 |
| 2012 | 2 | 5 |
| 2013 | 4 | 6 |
| 2014 | 2 | 3 |
| 2015 | 4 | 6 |
| 2016 | 1 | 6 |
| 2017 | 4 | 10 |
| 2018 | 5 | 7 |
| 2019 | 5 | 4 |
| 2020 | 6 | 8 |
| 2021 | 5 | 9 |
| 2022 | 9 | 10 |
| 2023 | 7 | 5 |
| 2024 | 8 | 3 |
| 2025 | 7 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Apparatus and method for regulating a pressure in a chamber203US 5,944,049 AAPPLIED Materials.Inc. · 1999
- Method for optimizing the functioning of a plurality of compressor units and corresponding device59US 7,676,283 B2Siemens Aktiengesellschaft · 2010
- Compressed air control system46US 5,325,884 AConservair Technologies · 1994
- Method and apparatus for load balancing among multiple compressors45US 5,743,715 ACompressor Controls Corporation · 1998
- Load sharing method and apparatus for controlling a main gas parameter of a compressor station with multiple dynamic compressors40US 5,347,467 ACompressor Controls Corporation · 1994