F04B 2203/0401
Current
F04B2203/0401 (Current) appears on 144 US grants and 157 published applications in this corpus.
Search patents in F04B- Granted patents
- 144
- Published applications
- 157
- Assignees
- 66
- Inventors
- 266
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 9 |
| 2003 | 10 | 11 |
| 2004 | 8 | 8 |
| 2005 | 7 | 11 |
| 2006 | 4 | 14 |
| 2007 | 1 | 5 |
| 2008 | 14 | 7 |
| 2009 | 5 | 7 |
| 2010 | 5 | 3 |
| 2011 | 3 | 2 |
| 2012 | 7 | 5 |
| 2013 | 3 | 4 |
| 2014 | 4 | 3 |
| 2015 | 3 | 2 |
| 2016 | 3 | 10 |
| 2017 | 4 | 10 |
| 2018 | 4 | 7 |
| 2019 | 9 | 6 |
| 2020 | 4 | 9 |
| 2021 | 9 | 9 |
| 2022 | 12 | 6 |
| 2023 | 4 | 2 |
| 2024 | 7 | 4 |
| 2025 | 2 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single-phase field-oriented control for a linear compressor6 Oct 2026US 12,753,752 B1Haier US Appliance Solutions, Inc.
- Active balancing of multiple interleaved piezo pumps23 Jun 2026US 12,662,997 B2Safran Landing Systems UK LTD
- Dynamic flux weakening for a single phase linear compressor17 Feb 2026US 12,553,432 B1Haier US Appliance Solutions, Inc.
- Piezoelectric actuator drive method, piezoelectric actuator drive circuit, and piezoelectric actuator drive system4 Nov 2025US 12,464,949 B2Sony Group Corporation
- Automated wellhead monitoring and control system23 Sep 2025US 12,422,789 B2Stearns, Conrad and Schmidt, Consulting Engineers, Inc.
- Leakage diagnosis method and leakage diagnosis system for a tank of a vehicle18 Sep 2025US 2025/0290823 A1Thomas Magnete GmbH
- Active balancing of multiple interleaved piezo pumps27 Mar 2025US 2025/0101974 A1Safran Landing Systems UK LTD
- Method and system for controlling a free piston mover5 Dec 2024US 2024/0405707 A1Libertine FPE Ltd
- Predictive maintenace method and system14 Nov 2024US 2024/0376999 A1
- Fluid dispensing system6 Jun 2024US 2024/0184314 A1Starbucks Corporation
Most cited
By later US patents
- Apparatus for controlling driving of reciprocating compressor and method thereof1,026US 7,408,310 B2LG Electronics Inc. · 2008
- Driving controlling apparatus for linear compressor and method thereof490US 7,845,912 B2LG Electronics Inc. · 2010
- Linear pump231US 5,924,975 AInternational Business Machines Corporation · 1999
- Method and apparatus for measuring piston position in a free piston compressor148US 5,342,176 ASunPower Corporation · 1994
- Linear motor110US 6,809,434 B1Fisher & Paykel Limited · 2004