F01C 1/123
With tooth-like elements, extending generally radially from the rotor body cooperating with
Official title: {with tooth-like elements, extending generally radially from the rotor body cooperating with recesses in the other rotor, e.g. one tooth}
F01C1/123 (With tooth-like elements, extending generally radially from the rotor body cooperating with) appears on 48 US grants and 48 published applications in this corpus.
Search patents in F01C- Granted patents
- 48
- Published applications
- 48
- Assignees
- 24
- Inventors
- 67
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 4 |
| 2011 | 2 | 2 |
| 2012 | 3 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 4 |
| 2015 | 2 | 6 |
| 2016 | 2 | 2 |
| 2017 | 6 | 2 |
| 2018 | 3 | 3 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 4 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Rotary engine, parts thereof, and methods8 Apr 2025US 12,270,331 B2Astron Aerospace LLC
- Rotary drive apparatus3 Dec 2024US 12,158,102 B2
- Rotor unit assembly28 May 2024US 11,994,031 B2BAE SYSTEMS plc
- Suction/compression rotating mechanism, rotary compressor and rotary engine16 Jan 2024US 11,873,813 B2
- Positive displacement rotary devices7 Sep 2021US 11,111,788 B2Mallen Research Limited Partnership
- Rotary engine, parts thereof, and methods18 Dec 2025US 2025/0382912 A1Astron Aerospace LLC
- Rotary drive apparatus27 Feb 2025US 2025/0067210 A1
- Rotary engine, parts thereof, and methods17 Oct 2024US 2024/0344480 A1Astron Aerospace LLC
- Rotor unit assembly4 Jan 2024US 2024/0003255 A1BAE SYSTEMS plc
- A rotary drive apparatus7 Dec 2023US 2023/0392542 A1
Most cited
By later US patents
- Respiratory therapy device and method79US 7,779,841 B2CareFusion 2200, Inc. · 2010
- Passive respiratory therapy device71US 8,025,054 B2CareFusion 2200, Inc. · 2011
- Positive displacement rotary devices with uniquely configured voids20US 9,664,047 B2Mallen Research Limited Partnership · 2017
- Positive displacement four lobe impeller structure14US 4,390,331 A1983
- Dual rotor internal combustion engine13US 6,988,482 B22006