F04B 27/0442
Supporting and guiding means for the pistons
Official title: {Supporting and guiding means for the pistons}
F04B27/0442 (Supporting and guiding means for the pistons) appears on 11 US grants and 11 published applications in this corpus.
Search patents in F04B- Granted patents
- 11
- Published applications
- 11
- Assignees
- 15
- Inventors
- 24
- Latest grant
- 17 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
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| 1980 | 1 | 0 |
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| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 2 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Piston compressor17 Dec 2024US 12,169,022 B2Borsig Zm Compression GmbH
- Reciprocating compressor16 Jul 2024US 12,037,994 B2IHI Rotating Machinery Engineering Co., Ltd.
- Compressor assembly for a compressed-air feed of a compressed-air supply system3 Aug 2021US 11,078,895 B2ZF CV Systems Hannover GmbH
- Low disturbance cryocooler compressor16 Mar 2021US 10,947,962 B1Lockheed Martin Corporation
- Piston cylinder arrangement for an oil free compressor having cooling passageways and method of cooling wrist pin bearing surface19 Feb 2019US 10,208,743 B2Westinghouse Air Brake Technologies Corporation
- Radial piston compressor10 Sep 2026US 2026/0266276 A1thyssenkrupp AG
- Wiper ring for reciprocating compressor rod packing28 May 2026US 2026/0146594 A1Compressor Products International LLC (Cpi)
- Compression system with gas leak recovery and fuel cells, and method14 Aug 2025US 2025/0260028 A1Nuovo Pignone Tecnologie Srl
- Piston compressor19 Oct 2023US 2023/0332687 A1Borsig Zm Compression GmbH
- Reciprocating compressor9 Jun 2022US 2022/0178360 A1IHI Rotating Machinery Engineering Co., Ltd.
Most cited
By later US patents
- Tappet18US 8,474,427 B2Schaeffler Technologies AG & Co. KG · 2013
- Free eccentric reciprocating piston device12US 4,339,988 AFord Motor Company · 1982
- Low disturbance cryocooler compressor1US 10,947,962 B1Lockheed Martin Corporation · 2021
- Compressor assembly for a compressed-air feed of a compressed-air supply system1US 11,078,895 B2ZF CV Systems Hannover GmbH · 2021
- Reciprocating compressor1US 12,037,994 B2IHI Rotating Machinery Engineering Co., Ltd. · 2024