F01C 19/085
Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type
Official title: {Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or engines, e.g. gear machines or engines}
F01C19/085 (Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type) appears on 30 US grants and 34 published applications in this corpus.
Search patents in F01C- Granted patents
- 30
- Published applications
- 34
- Assignees
- 30
- Inventors
- 47
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 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 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 3 |
| 2006 | 2 | 3 |
| 2007 | 1 | 0 |
| 2008 | 2 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 3 | 5 |
| 2015 | 1 | 2 |
| 2016 | 3 | 2 |
| 2017 | 2 | 0 |
| 2018 | 1 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rotary engine with seal having elastomeric and metallic members14 Jan 2025US 12,196,154 B2Pratt & Whitney Canada Corp.
- Sealing arrangement6 Jun 2023US 11,668,300 B2Tocircle Industries AS
- Heavy fuel rotary engine with compression ignition7 Jun 2022US 11,352,941 B2Rotary Research Group LLC
- Heavy fuel rotary engine with compression ignition2 Feb 2021US 10,907,531 B1Rotary Research Group LLC
- Geared fluid machine with circumferential seal having first and second spaced apart seal limbs28 Apr 2020US 10,634,136 B2Eckerle Technologies GmbH
- Rotary engine with seal having elastomeric and metallic members5 Dec 2024US 2024/0401545 A1Pratt & Whitney Canada Corp.
- Heavy fuel rotary engine with compression ignition25 Nov 2021US 2021/0363912 A1Rotary Research Group LLC
- Sealing arrangement5 Nov 2020US 2020/0347726 A1Tocircle Industries AS
- Rotory engine with rotor land14 Jun 2018US 2018/0163541 A1Pratt & Whitney Canada Corp.
- Rotary Engine8 Mar 2018US 2018/0066520 A1LiquidPiston, Inc.
Most cited
By later US patents
- Cycloid rotor engine32US 8,523,546 B2LiquidPiston, Inc. · 2013
- Gerotor apparatus for a quasi-isothermal Brayton cycle engine16US 8,821,138 B2The Texas A&M University System · 2014
- Gerotor apparatus for a quasi-isothermal brayton cycle engine13US 7,008,200 B2StarRotor Corporation · 2006
- Electric machine having a high-torque switched reluctance motor13US 7,663,283 B2StarRoter Corporation · 2010
- Planetary piston rotary engine11US 6,932,047 B2Power Source Technologies, Inc. · 2005