F04B 35/045
Using solenoids
Official title: {using solenoids}
F04B35/045 (Using solenoids) appears on 815 US grants and 898 published applications in this corpus.
Search patents in F04B- Granted patents
- 815
- Published applications
- 898
- Assignees
- 254
- Inventors
- 1,102
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 6 | 0 |
| 2000 | 16 | 0 |
| 2001 | 17 | 11 |
| 2002 | 16 | 26 |
| 2003 | 36 | 45 |
| 2004 | 32 | 55 |
| 2005 | 32 | 55 |
| 2006 | 27 | 75 |
| 2007 | 23 | 42 |
| 2008 | 34 | 38 |
| 2009 | 24 | 37 |
| 2010 | 14 | 35 |
| 2011 | 23 | 29 |
| 2012 | 22 | 14 |
| 2013 | 26 | 27 |
| 2014 | 20 | 32 |
| 2015 | 17 | 42 |
| 2016 | 23 | 38 |
| 2017 | 35 | 46 |
| 2018 | 36 | 47 |
| 2019 | 37 | 38 |
| 2020 | 47 | 40 |
| 2021 | 34 | 41 |
| 2022 | 49 | 31 |
| 2023 | 30 | 25 |
| 2024 | 26 | 15 |
| 2025 | 23 | 9 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pump device29 Sep 2026US 12,747,725 B2Iwaki Co., Ltd.
- Solenoid concept for pump control of a variable displacement piston pump29 Sep 2026US 12,747,727 B2Hamilton Sundstrand Corporation
- Linear compressor with a self-aligned coupling16 Jun 2026US 12,656,030 B2Haier US Appliance Solutions, Inc.
- Flux weakening for a single phase linear compressor16 Jun 2026US 12,656,038 B1Haier US Appliance Solutions, Inc.
- Piston unit for compressor19 May 2026US 12,631,176 B2Standard Cooling System Inc.
- Pump for hvac&r system13 Aug 2026US 2026/0235114 A1Tyco Fire & Security GmbH
- Method for operating a linear motor compressor, and linear motor compressor13 Aug 2026US 2026/0235117 A1Burckhardt Compression AG
- Fluid handling systems including a compressor18 Jun 2026US 2026/0168484 A1Energy Recovery, Inc.
- Linear compressor with a linear electric motor and household appliance29 Jan 2026US 2026/0031694 A1BSH Hausgeräte GmbH
- Refrigerating apparatus using non-azeotropic mixed refrigerant1 Jan 2026US 2026/0002710 A1LG Electronics Inc.
Most cited
By later US patents
- Electroactive polymer devices1,577US 6,545,384 B1SRI International · 2003
- Electroactive polymer electrodes1,515US 6,583,533 B2SRI International · 2003
- Apparatus for controlling driving of reciprocating compressor and method thereof1,026US 7,408,310 B2LG Electronics Inc. · 2008
- Coil winding number variable type motor and coil winding number varying method for varying cooling and heating capacity of reciprocating compressor1,021US 6,841,967 B2LG Electronics Inc. · 2005
- Linear motor and linear compressor using the same1,020US 7,489,055 B2LG Electronics Inc. · 2009