F04B 2201/021
Rotational speed of a piston rotating around its own axis
F04B2201/021 (Rotational speed of a piston rotating around its own axis) appears on 4 US grants and 5 published applications in this corpus.
Search patents in F04B- Granted patents
- 4
- Published applications
- 5
- Assignees
- 4
- Inventors
- 12
- Latest grant
- 27 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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- Fluid machine and method for controlling such a machine14 May 2026US 2026/0132780 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Automatic Determination of Trigger Angle for Reciprocating Compressor Rod Drop Measurements13 Apr 2023US 2023/0113754 A1epro GmbH
- Method for operating a vacuum pump system9 Dec 2021US 2021/0381499 A1Leybold Aktiengesellschaft
- Tube Pump System And Method For Controlling The Tube Pump System20 Aug 2020US 2020/0263682 A1Surpass Industry Co., Ltd.
- Tube pump system and method for controlling the tube pump system19 Sep 2019US 2019/0285064 A1Surpass Industry Co., Ltd.
Most cited
By later US patents