F04C 2280/00
Arrangements for preventing or removing deposits or corrosion
F04C2280/00 (Arrangements for preventing or removing deposits or corrosion) appears on 66 US grants and 97 published applications in this corpus.
Search patents in F04C- Granted patents
- 66
- Published applications
- 97
- Assignees
- 59
- Inventors
- 212
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 7 |
| 2009 | 1 | 2 |
| 2010 | 1 | 4 |
| 2011 | 2 | 5 |
| 2012 | 0 | 5 |
| 2013 | 3 | 3 |
| 2014 | 5 | 5 |
| 2015 | 2 | 4 |
| 2016 | 2 | 5 |
| 2017 | 4 | 2 |
| 2018 | 3 | 6 |
| 2019 | 4 | 9 |
| 2020 | 4 | 9 |
| 2021 | 3 | 6 |
| 2022 | 11 | 2 |
| 2023 | 4 | 5 |
| 2024 | 4 | 5 |
| 2025 | 6 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control device for hydraulic control valve28 Apr 2026US 12,612,912 B2Hitachi Astemo, Ltd.
- Refrigerant compressor for air-conditioning systems and method for operating a refrigerant compressor10 Feb 2026US 12,546,515 B2Hanon Systems
- Vacuum line and method for controlling a vacuum line to reduce explosion potential via injection of diluent gas to lower flammable gas concentration16 Dec 2025US 12,496,563 B2Pfeiffer Vacuum GmbH
- Filter device for air compressor16 Dec 2025US 12,497,960 B1Dongguan Hesheng Machinery & Electric Co., Ltd.
- Control system for a smart pump located within a lubrication/cooling assembly16 Dec 2025US 12,497,963 B2GHSP, Inc.
- Vacuum pump20 Aug 2026US 2026/0243257 A1Pfeiffer Vacuum GmbH
- Magnetic debris filter for compressor and compressor with magnetic debris filter19 Mar 2026US 2026/0078757 A1Mahle International GmbH
- Control system for a smart pump located within a lubrication/cooling assembly12 Mar 2026US 2026/0071622 A1GHSP, Inc.
- Filter device for air compressor18 Dec 2025US 2025/0382954 A1Dongguan Hesheng Machinery & Electric Co., Ltd.
- Apparatus and method for controlling a vehicle air compressor to track water content in compressor oil2 Oct 2025US 2025/0305500 A1Bendix Commercial Vehicle Systems LLC
Most cited
By later US patents
- Air compressor of water injection type9US 8,616,856 B2Hitachi Industrial Equipment Systems Co., Ltd. · 2013
- Vacuum pumping apparatus8US 6,471,494 B1Aisin Seiki Kabushiki Kaisha · 2002
- Twin shaft vacuum pump with purge gas inlet6US 5,046,934 ALeybold Aktiengesellschaft · 1991
- Composite dry vacuum pump having roots and screw rotor5US 7,611,340 B2Lot Vacuum Co., Ltd. · 2009
- Screw compressor5US 8,801,412 B2Hitachi Industrial Equipment Systems Co., Ltd. · 2014