F01C 21/183
Arrangements for supercharging the working space
Official title: {Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B27/00)}
F01C21/183 (Arrangements for supercharging the working space) appears on 23 US grants and 19 published applications in this corpus.
Search patents in F01C- Granted patents
- 23
- Published applications
- 19
- Assignees
- 5
- Inventors
- 24
- Latest grant
- 30 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 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 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 5 |
| 2014 | 3 | 1 |
| 2015 | 2 | 3 |
| 2016 | 1 | 0 |
| 2017 | 4 | 4 |
| 2018 | 4 | 3 |
| 2019 | 0 | 1 |
| 2020 | 4 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Compound engine system with rotary engine28 Jan 2020US 10,544,733 B2Pratt & Whitney Canada Corp.
- Rotary piston engine having optimized internal cooling of intake air4 Aug 2022US 2022/0243645 A1
- Compound engine system with rotary engine23 Apr 2020US 2020/0123971 A1Pratt & Whitney Canada Corp.
- Rotary internal combustion engine with pilot subchamber21 Feb 2019US 2019/0055882 A1Pratt & Whitney Canada Corp.
- Rotary internal combustion engine with pilot subchamber5 Jul 2018US 2018/0187593 A1Pratt & Whitney Canada Corp.
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Most cited
By later US patents
- Rotary internal combustion engine with pilot subchamber22US 9,528,434 B1Pratt & Whitney Canada Corp. · 2016
- Compound engine system with rotary engine21US 9,027,345 B2Pratt & Whitney Canada Corp. · 2015
- Rotary engine17US 4,418,663 A1983
- Rotary internal combustion engine with pilot subchamber16US 9,038,594 B2Pratt & Whitney Canada Corp. · 2015
- Rotary piston engine having supercharging means8US 4,315,489 AToyo Kogyo Co., Ltd. · 1982