F04B 45/0333
The fluid being actuated directly by a piston
Official title: {the fluid being actuated directly by a piston}
F04B45/0333 (The fluid being actuated directly by a piston) appears on 4 US grants and 6 published applications in this corpus.
Search patents in F04B- Granted patents
- 4
- Published applications
- 6
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Direct connect piston-driven bellows pump23 Sep 2025US 12,421,953 B2Halliburton Energy Services.Inc.
- Diaphragm pump comprising a diaphragm connected to a control element and a pressure protection device mounted to the control element wherein the control element is intermediate the control element and the diaphragm and is configured to seal against a transfer chamber wall20 Sep 2022US 11,448,205 B2Wanner Engineering, Inc.
- Bellows pump device4 Jun 2019US 10,309,391 B2Nippon Pillar Packing Co., Ltd.
- Compressor integral with stirling engine24 Jan 1995US 5,383,334 AAisin Seiki Kabushiki Kaisha
- Compressor Device and a Cooling Device Having the Compressor Device24 Apr 2025US 2025/0129977 A1Pressure Wave Systems GmbH
- Direct connect piston-driven bellows pump14 Nov 2024US 2024/0376880 A1Halliburton Energy Services.Inc.
- Conveying Device with Bellows and Cooling Device17 Oct 2024US 2024/0344510 A1Hydac Technology GmbH
- Tritium injection techniques and related systems and methods24 Nov 2022US 2022/0375630 A1Commonwealth Fusion Systems LLC
- Device for protecting a diaphragm pump from pressure differential24 Oct 2019US 2019/0323493 A1Wanner Engineering, Inc.
Most cited
By later US patents
- Compressor integral with stirling engine9US 5,383,334 AAisin Seiki Kabushiki Kaisha · 1995
- Bellows pump device1US 10,309,391 B2Nippon Pillar Packing Co., Ltd. · 2019
- Diaphragm pump comprising a diaphragm connected to a control element and a pressure protection device mounted to the control element wherein the control element is intermediate the control element and the diaphragm and is configured to seal against a transfer chamber wall1US 11,448,205 B2Wanner Engineering, Inc. · 2022