F04C 18/28
Of other than internal-axis type
Official title: of other than internal-axis type
F04C18/28 (Of other than internal-axis type) appears on 6 US grants and 9 published applications in this corpus.
Search patents in F04C- Granted patents
- 6
- Published applications
- 9
- Assignees
- 7
- Inventors
- 14
- Latest grant
- 2 Jan 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year.
Recent patents
- Rotary screw compressors utilizing viscous damping for vibration reduction2 Jan 2018US 9,856,876 B2Johnson Controls Technology Company
- Compressor having balance mechanism for a thrust bearing14 Nov 2017US 9,816,553 B2Kobe Steel, Ltd.
- Vacuum cleaners especially quiet vacuum cleaners, pumps, and engines25 Sep 2012US 8,272,854 B2
- Rotary machine20 Sep 2005US 6,945,217 B2DAR Engines, Ltd.
- Rotary machine12 Aug 2003US 6,604,503 B2M.R. Engines Ltd.
- Rotary motor with integral fluid seal27 Nov 2025US 2025/0361808 A1Coool.Energy Ltd
- Rotary screw compressors utilizing viscous damping for vibration reduction11 Feb 2016US 2016/0040670 A1Johnson Controls Technology Company
- Compressor30 Apr 2015US 2015/0118092 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Nebulizer device17 Oct 2013US 2013/0269688 A1Koninklijke Philips Electonics N.V.
- Rotary engines30 Nov 2006US 2006/0265835 A1
Most cited
By later US patents
- Vacuum cleaners especially quiet vacuum cleaners, pumps, and engines24US 8,272,854 B22012
- Rotary machine6US 6,250,278 B12001
- Rotary machine5US 6,604,503 B2M.R. Engines Ltd. · 2003
- Rotary machine4US 6,945,217 B2DAR Engines, Ltd. · 2005
- Rotary screw compressors utilizing viscous damping for vibration reduction1US 9,856,876 B2Johnson Controls Technology Company · 2018