F04C 3/08
Of intermeshing engagement type, i.e. with engagement of co-operating members similar to
Official title: of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F04C3/08 (Of intermeshing engagement type, i.e. with engagement of co-operating members similar to) appears on 27 US grants and 31 published applications in this corpus.
Search patents in F04C- Granted patents
- 27
- Published applications
- 31
- Assignees
- 13
- Inventors
- 61
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 3 |
| 2015 | 1 | 6 |
| 2016 | 2 | 1 |
| 2017 | 4 | 3 |
| 2018 | 2 | 1 |
| 2019 | 3 | 2 |
| 2020 | 0 | 0 |
| 2021 | 3 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hand-operated pressurized-fluid device11 Nov 2025US 12,465,953 B2Kolektor Mobility D.O.O.
- Rotary positive displacement device31 Dec 2024US 12,180,960 B2Spherical Rotors Inc.
- Rotary fluid flow device28 Mar 2023US 11,614,089 B2
- Device for conveying a medium26 Apr 2022US 11,313,366 B2ITT Bornemann GmbH
- Air intake separator systems and methods19 Oct 2021US 11,148,087 B2Veotec Americas LLC
- Spherical pump and motor assembly11 Jun 2026US 2026/0160248 A1Shenzhen Spherical Fluid Power Technology Co., Ltd.
- Rotary positive displacement device21 Nov 2024US 2024/0384720 A1Spherical Rotors Inc.
- Hand-operated pressurized-fluid device30 Nov 2023US 2023/0381830 A1Kolektor Mobility D.O.O.
- Oil Pump for Vehicle18 Nov 2021US 2021/0355940 A1Hyundai Motor Company
- Rotary Fluid Flow Device30 Sep 2021US 2021/0301825 A1
Most cited
By later US patents
- Rotary piston machine9US 7,275,920 B2Cor Pumps + Compressors AG · 2007
- Indexed positive displacement rotary motion device9US 8,602,758 B2Exponential Technologies, Inc. · 2013
- Screw spindle pump6US 9,765,776 B2Leistritz Pumpen GmbH · 2017
- Rotating piston machine5US 7,390,181 B2Cor Pumps + Compressors AG · 2008
- Spherical involute gear coupling4US 8,887,592 B2Exponential Technologies, Inc. · 2014