F04C 2210/12
Auxiliary
Official title: auxiliary
F04C2210/12 (Auxiliary) appears on 12 US grants and 11 published applications in this corpus.
Search patents in F04C- Granted patents
- 12
- Published applications
- 11
- Assignees
- 11
- Inventors
- 32
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Rotary compressor18 Mar 2025US 12,253,083 B2LG Electronics Inc.
- Fluid transfer apparatus3 Dec 2024US 12,158,149 B2Korea Atomic Energy Research Institute
- Closed circulation system for production of a polymer solution and improving operating efficiency of a gas drainage pump used in a coal mine7 Apr 2020US 10,613,554 B2China University of Mining and Technology
- Oil well pump apparatus24 Feb 2015US 8,960,309 B2
- Air compressor of water injection type31 Dec 2013US 8,616,856 B2Hitachi Industrial Equipment Systems Co., Ltd.
- Liquid blade pump7 Sep 2023US 2023/0279875 A1
- Rotary compressor15 Jun 2023US 2023/0184250 A1LG Electronics Inc.
- Fluid transfer apparatus28 Apr 2022US 2022/0127997 A1Korea Atomic Energy Research Institute
- Closed circulation system for improving operating efficiency of gas drainage pump19 Sep 2019US 2019/0286174 A1China University of Mining and Technology
- Oil Well Pump Apparatus28 Jan 2016US 2016/0024898 A1
Most cited
By later US patents
- Oil well pump apparatus14US 8,960,309 B22015
- Air compressor of water injection type9US 8,616,856 B2Hitachi Industrial Equipment Systems Co., Ltd. · 2013
- Oil-free scroll vacuum pump having a gas ballast part6US 5,743,719 AAnest Iwata Corporation · 1998
- Water jet type air compressor system, its starting method, and water quality control method thereof6US 6,174,148 B1Ishikawajima-Harima Heavy Industries Co., Ltd. · 2001
- Compressor assembly6US 6,287,084 B1KT Kirsten Technologie-Entwicklung GmbH · 2001