F04C 2270/215
Controlled or regulated
F04C2270/215 (Controlled or regulated) appears on 13 US grants and 18 published applications in this corpus.
Search patents in F04C- Granted patents
- 13
- Published applications
- 18
- Assignees
- 15
- Inventors
- 37
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 2 |
| 2017 | 0 | 2 |
| 2018 | 1 | 4 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Fuel supply system and fuel supply method for aircraft gas turbine engine9 Sep 2025US 12,410,791 B2IHI Corporation
- Variable economizer injection position16 Apr 2024US 11,959,483 B2Trane International Inc.
- Operating method for a conveying device with an eccentric screw pump for conveying viscous construction materials30 Jan 2024US 11,885,332 B2J. Wagner GmbH
- Scroll compressor29 Mar 2022US 11,286,936 B2Hanon Systems
- Rotary piston pump having a sealing chamber seal22 Mar 2022US 11,280,335 B2Vogelsang GmbH & Co. KG
- Compression mechanism and scroll compressor1 Jan 2026US 2026/0002538 A1Copeland Climate Technologies (Suzhou) Co. Ltd.
- Fuel supply system and fuel supply method for aircraft gas turbine engine9 Jan 2025US 2025/0012274 A1IHI Corporation
- Operating method for a conveying device with an eccentric screw pump for conveying viscous construction materials27 Jul 2023US 2023/0235738 A1J. Wagner GmbH
- Variable economizer injection position11 Mar 2021US 2021/0071668 A1Trane International Inc.
- Scroll compressor23 Jul 2020US 2020/0232466 A1Hanon Systems
Most cited
By later US patents
- 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
- System and method for providing stable fluid flow1US 10,466,155 B2Life Technologies Corporation · 2019
- Scroll compressor1US 11,286,936 B2Hanon Systems · 2022
- Two-stage compression refrigeration cycle device1US 9,389,005 B2Denso Corporation · 2016
- Methods of controlling a cooling system based on pressure differences across a scroll compressor1US 9,477,235 B2Liebert Corporation · 2016