F01B 1/10
Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders
Official title: with more than one main shaft, e.g. coupled to common output shaft
F01B1/10 (Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders) appears on 44 US grants and 49 published applications in this corpus.
Search patents in F01B- Granted patents
- 44
- Published applications
- 49
- Assignees
- 17
- Inventors
- 54
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 1 | 2 |
| 2014 | 2 | 3 |
| 2015 | 5 | 3 |
| 2016 | 0 | 4 |
| 2017 | 4 | 8 |
| 2018 | 5 | 3 |
| 2019 | 4 | 7 |
| 2020 | 4 | 2 |
| 2021 | 7 | 4 |
| 2022 | 1 | 1 |
| 2023 | 2 | 2 |
| 2024 | 2 | 3 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of operating an internal combustion engine of a truck or omnibus28 Apr 2026US 12,612,878 B2Obrist Technologies GmbH
- Opposed-piston internal combustion engine25 Nov 2025US 12,480,439 B2Umu Devising LLC
- Power unit1 Apr 2025US 12,264,618 B2Obrist Technologies GmbH
- Method of operating an internal combustion engine of a watercraft12 Nov 2024US 12,139,246 B2Obrist Technologies GmbH
- Engine device for unmanned flying apparatus24 Sep 2024US 12,097,980 B1Arase Aizawa Aerospatiale LLC
- Opposed-piston internal combustion engine2 Oct 2025US 2025/0305446 A1Umu Devising LLC
- Cylinder/reciprocating-piston device, compressed air engine, and vehicle1 May 2025US 2025/0137372 A1
- Engine device for unmanned flying apparatus12 Sep 2024US 2024/0300680 A1Arase Aizawa Aerospatiale LLC
- Method of operating an internal combustion engine of a watercraft29 Feb 2024US 2024/0067320 A1Obrist Technologies GmbH
- Method of operating an internal combustion engine of a truck or omnibus4 Jan 2024US 2024/0003305 A1Obrist Technologies GmbH
Most cited
By later US patents
- Variable compression ratio systems for opposed-piston and other internal combustion engines, and related methods of manufacture and use40US 8,413,619 B2Pinnacle Engines, Inc. · 2013
- Two-stroke cycle engine21US 4,491,096 AToyota Jidosha Kogyo Kabushiki Kaisha · 1985
- Double-acting four-cylinder hot gas engine16US 4,195,613 AKommanditbolaget United Stirling (Sweden) AB & Co. · 1980
- In-line six internal combustion engine12US 8,899,193 B2Lippitt Engine, LLC · 2014
- Power unit6US 10,989,273 B2Obrist Technologies GmbH · 2021