F04C 2270/195
Controlled or regulated
F04C2270/195 (Controlled or regulated) appears on 81 US grants and 95 published applications in this corpus.
Search patents in F04C- Granted patents
- 81
- Published applications
- 95
- Assignees
- 40
- Inventors
- 192
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 3 |
| 2013 | 0 | 1 |
| 2014 | 3 | 5 |
| 2015 | 1 | 3 |
| 2016 | 2 | 8 |
| 2017 | 5 | 10 |
| 2018 | 5 | 10 |
| 2019 | 5 | 6 |
| 2020 | 12 | 5 |
| 2021 | 5 | 9 |
| 2022 | 8 | 7 |
| 2023 | 6 | 6 |
| 2024 | 7 | 5 |
| 2025 | 12 | 9 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automotive electric oil pump21 Jul 2026US 12,687,166 B2Pierburg Pump Technology GmbH
- Screw compressor14 Jul 2026US 12,680,545 B2Hitachi, Ltd.
- Thermistor flow path5 May 2026US 12,618,406 B2GHSP, Inc.
- Systems and methods for water removal in compressors3 Feb 2026US 12,539,491 B2Doosan Bobcat North America, Inc.
- Heat exchanger for hydraulic post-tensioning jack system23 Dec 2025US 12,504,010 B2
- Gas Compressor20 Aug 2026US 2026/0243258 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Thermistor flow path13 Aug 2026US 2026/0235120 A1GHSP, Inc.
- Screw Compressor30 Apr 2026US 2026/0117771 A1Hitachi, Ltd.
- Automotive electric oil pump4 Dec 2025US 2025/0369441 A1Pierburg Pump Technology GmbH
- Compressor system having integrated ambient sensor18 Sep 2025US 2025/0290510 A1Kaeser Kompressoren SE
Most cited
By later US patents
- Refrigerating apparatus58US 6,240,736 B1Hitachi, Ltd. · 2001
- Crankcase heater systems and methods for variable speed compressors24US 8,734,125 B2Emerson Climate Technologies, Inc. · 2014
- Refrigerating apparatus16US 5,910,161 A1999
- Refrigerating apparatus10US 6,438,979 B2Hitachi, Ltd. · 2002
- Compressor with a closed loop water cooling system7US 10,746,177 B2Ingersoll-Rand Industrial U.S., Inc. · 2020