F01B 17/00
Reciprocating-piston machines or engines characterised by use of uniflow principle
F01B17/00 (Reciprocating-piston machines or engines characterised by use of uniflow principle) appears on 289 US grants and 195 published applications in this corpus.
Search patents in F01B- Granted patents
- 289
- Published applications
- 195
- Assignees
- 116
- Inventors
- 354
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 11 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 2 |
| 2002 | 7 | 5 |
| 2003 | 12 | 7 |
| 2004 | 5 | 18 |
| 2005 | 6 | 7 |
| 2006 | 4 | 6 |
| 2007 | 5 | 1 |
| 2008 | 5 | 1 |
| 2009 | 2 | 12 |
| 2010 | 1 | 13 |
| 2011 | 6 | 16 |
| 2012 | 10 | 16 |
| 2013 | 15 | 16 |
| 2014 | 17 | 17 |
| 2015 | 6 | 5 |
| 2016 | 8 | 8 |
| 2017 | 13 | 8 |
| 2018 | 7 | 13 |
| 2019 | 9 | 8 |
| 2020 | 12 | 4 |
| 2021 | 8 | 4 |
| 2022 | 3 | 4 |
| 2023 | 2 | 2 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compressed air driven system14 Apr 2026US 12,601,260 B1
- Steam engine27 Jan 2026US 12,535,005 B2Rd Estate GmbH & Co. KG
- Pneumatic motor9 Sep 2025US 12,410,710 B2Circle Dynamics Inc.
- Compressed-air engine with integrated active chamber and active distribution with balanced valve8 Jul 2025US 12,352,171 B2Motor Development International S.A.
- Pressure control system for a closed-cycle engine3 Sep 2024US 12,078,066 B1Hyliion Holdings Corp.
- Steam engine10 Jul 2025US 2025/0223905 A1Rd Estate GmbH & Co. KG
- Biomass energy generator system7 Mar 2024US 2024/0077045 A1
- Compressed-air engine with integrated active chamber and active distribution with balanced valve21 Dec 2023US 2023/0407747 A1Motor Development International S.A.
- System, apparatus and method for clean, multi-energy generation9 Nov 2023US 2023/0358184 A1
- Improvements to a pneumatic motor23 Jun 2022US 2022/0195872 A1Circle Dynamics Inc.
Most cited
By later US patents
- Power plant utilizing compressed air energy storage and saturation333US 5,491,969 AElectric Power Research Institute, Inc. · 1996
- Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange119US 8,436,489 B2LightSail Energy, Inc. · 2013
- Vehicle operating method and system115US 6,223,846 B12001
- Fuel efficient valve control102US 5,975,052 A1999
- Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange97US 8,065,874 B2Lightsale Energy, Inc. · 2011