F04B 27/0673
By using a valve in a system with several pumping chambers, wherein
Official title: {by using a valve in a system with several pumping chambers, wherein the flow-path through the chambers can be changed, e.g. series-parallel}
F04B27/0673 (By using a valve in a system with several pumping chambers, wherein) appears on 13 US grants and 11 published applications in this corpus.
Search patents in F04B- Granted patents
- 13
- Published applications
- 11
- Assignees
- 7
- Inventors
- 19
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 2 | 2 |
| 2022 | 2 | 1 |
| 2023 | 3 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
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