F04C 2270/14
Pulsations
F04C2270/14 (Pulsations) appears on 39 US grants and 45 published applications in this corpus.
Search patents in F04C- Granted patents
- 39
- Published applications
- 45
- Assignees
- 37
- Inventors
- 85
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 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 | 3 |
| 2010 | 0 | 3 |
| 2011 | 2 | 3 |
| 2012 | 1 | 3 |
| 2013 | 3 | 0 |
| 2014 | 1 | 3 |
| 2015 | 3 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 4 |
| 2018 | 4 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 4 |
| 2021 | 2 | 2 |
| 2022 | 1 | 2 |
| 2023 | 5 | 3 |
| 2024 | 2 | 7 |
| 2025 | 5 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump device, respiratory device and method for providing a respiratory gas24 Mar 2026US 12,582,793 B2Weinmann Emergency Medical Technology GmbH + Co. KG
- Pump and method to attenuate pulses at the discharge24 Mar 2026US 12,584,483 B2Magpumps Limited
- Quieted front exhaust motor16 Dec 2025US 12,496,699 B2Ingersoll-Rand Industrial U.S., Inc.
- Slide valve for a twin-screw compressor30 Sep 2025US 12,429,053 B2Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd.
- Rotary compressor10 Jun 2025US 12,326,149 B2Panasonic Intellectual Property Management Co., Ltd.
- Rotary compressor10 Apr 2025US 2025/0116273 A1Panasonic Intellectual Property Management Co., Ltd.
- Automotive pendulum-slider pump26 Dec 2024US 2024/0426296 A1Pierburg Pump Technology GmbH
- Air motor with increased dwell at max vane extension7 Nov 2024US 2024/0368992 A1
- Quieted front exhaust motor24 Oct 2024US 2024/0351180 A1Ingersoll-Rand Industrial U.S., Inc.
- Rotary compressor17 Oct 2024US 2024/0344518 A1LG Electronics Inc.
Most cited
By later US patents
- Variable displacement pump having throttled control passages37US 5,562,432 AJidosha Kiki Co., Ltd. · 1996
- Compressor sound suppression5US 8,021,126 B2Carrier Corporation · 2011
- Compressor muffler4US 8,328,532 B2Carrier Corporation · 2012
- Variable displacement pump4US 8,613,610 B2Hitachi Automotive Systems, Ltd. · 2013
- Elastomer series coupling damper for supercharger2US 11,098,766 B22021