F04B 2203/04
Motor parameters: of linear electric motors
Official title: of linear electric motors
F04B2203/04 (Motor parameters: of linear electric motors) appears on 261 US grants and 293 published applications in this corpus.
Search patents in F04B- Granted patents
- 261
- Published applications
- 293
- Assignees
- 132
- Inventors
- 491
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 11 |
| 2003 | 12 | 13 |
| 2004 | 9 | 9 |
| 2005 | 7 | 15 |
| 2006 | 5 | 16 |
| 2007 | 3 | 10 |
| 2008 | 15 | 8 |
| 2009 | 6 | 11 |
| 2010 | 5 | 3 |
| 2011 | 4 | 5 |
| 2012 | 9 | 6 |
| 2013 | 3 | 11 |
| 2014 | 6 | 6 |
| 2015 | 6 | 6 |
| 2016 | 10 | 13 |
| 2017 | 12 | 38 |
| 2018 | 12 | 17 |
| 2019 | 29 | 17 |
| 2020 | 10 | 19 |
| 2021 | 16 | 17 |
| 2022 | 22 | 14 |
| 2023 | 11 | 7 |
| 2024 | 10 | 10 |
| 2025 | 12 | 8 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04B 2203/0402VoltageIndexing code151
- F04B 2203/0401CurrentIndexing code144
- F04B 2203/0404Frequency of the electric currentIndexing code53
- F04B 2203/0406VibrationIndexing code16
- F04B 2203/0409Linear speedIndexing code16
- F04B 2203/0403Magnetic fluxIndexing code13
- F04B 2203/0405TemperatureIndexing code10
- F04B 2203/0408PowerIndexing code9
Recent patents
- Single-phase field-oriented control for a linear compressor6 Oct 2026US 12,753,752 B1Haier US Appliance Solutions, Inc.
- Electronic vaporiser system28 Jul 2026US 12,690,610 B2Ayr Ltd.
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- 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.
- Flow meter for dosing pumps16 Apr 2026US 2026/0104044 A1Advantage Controls, LLC
- Pressure monitoring for device failure detection and device health in a urology implantable medical device15 Jan 2026US 2026/0014001 A1Boston Scientific Scimed, Inc.
- Mechanism for electronic adjustment of flows in fixed displacement pump13 Nov 2025US 2025/0347268 A1Fluid Metering, Inc.
- Leakage diagnosis method and leakage diagnosis system for a tank of a vehicle18 Sep 2025US 2025/0290823 A1Thomas Magnete GmbH
- Drug injection device and method14 Aug 2025US 2025/0256023 A1Caremedi Co., Ltd.
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
- Reciprocating pump system and method for operating same135US 5,846,056 A1998