F01C 3/08
Of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that
Official title: of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F01C3/08 (Of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that) appears on 34 US grants and 31 published applications in this corpus.
Search patents in F01C- Granted patents
- 34
- Published applications
- 31
- Assignees
- 11
- Inventors
- 23
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 1 |
| 2004 | 2 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 5 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 3 |
| 2014 | 4 | 1 |
| 2015 | 3 | 3 |
| 2016 | 2 | 0 |
| 2017 | 2 | 2 |
| 2018 | 2 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Rotary positive displacement device31 Dec 2024US 12,180,960 B2Spherical Rotors Inc.
- Rotary fluid flow device28 Mar 2023US 11,614,089 B2
- Rotary fluid flow device13 Apr 2021US 10,975,869 B2Exponential Technologies, Inc.
- Positive displacement rotary motion device including a pulse detonation device2 Jul 2019US 10,337,328 B2Exponential Technologies, Inc.
- Electric pump supported by journal bearings11 Dec 2018US 10,151,312 B2Robert Bosch GmbH
- Rotary positive displacement device24 Apr 2025US 2025/0129778 A1Spherical Rotors Inc.
- Rotary positive displacement device21 Nov 2024US 2024/0384720 A1Spherical Rotors Inc.
- Rotary Fluid Flow Device30 Sep 2021US 2021/0301825 A1
- Rotary Fluid Flow Device5 Sep 2019US 2019/0271317 A1Exponential Technologies, Inc.
- Pump unit12 Oct 2017US 2017/0292516 A1Robert Bosch GmbH
Most cited
By later US patents
- Rotary engine and method for determining engagement surface contours therefor24US 6,739,852 B1Outland Technologies (USA), Inc. · 2004
- Rotary piston machine having engaging cycloidal gears19US 5,513,969 A1996
- Method for determining engagement surface contours for a rotor of an engine18US 6,634,873 B2Outland Technologies, Inc. · 2003
- Positive displacement flow meter method and apparatus12US 6,705,161 B1Outland Technologies (USA), Inc. · 2004
- Balanced rotors positive displacement engine and pump method and apparatus11US 6,497,564 B22002