B63G 8/12
Using internal-combustion engines
Official title: using internal-combustion engines
B63G8/12 (Using internal-combustion engines) appears on 15 US grants and 13 published applications in this corpus.
Search patents in B63G- Granted patents
- 15
- Published applications
- 13
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 14 Dec 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 5 |
| 2019 | 2 | 0 |
| 2020 | 3 | 3 |
| 2021 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Multipurpose low emission submersible engine and aquatic craft using same14 Dec 2021US 11,198,039 B2
- System and method for transporting methane3 Aug 2021US 11,077,925 B2The Boeing Company
- Series hybrid architecture for an unmanned underwater vehicle propulsion system18 May 2021US 11,009,327 B2Hamilton Sundstrand Corporation
- Parallel combustor configuration for unmanned underwater vehicle propulsion turbine11 Aug 2020US 10,738,697 B2Hamilton Sundstrand Corporation
- Series hybrid architecture for an unmanned underwater vehicle propulsion system21 Jul 2020US 10,718,598 B2Hamilton Sundstrand Corporation
- Lift and drive unit, aircraft, and submarine vehicle2 Dec 2021US 2021/0371100 A12706649 Ontario Ltd
- Series hybrid architecture for an unmanned underwater vehicle propulsion system8 Oct 2020US 2020/0318936 A1Hamilton Sundstrand Corporation
- Multipurpose low emission submersible engine and aquatic craft using same11 Jun 2020US 2020/0179763 A1
- System and method for transporting methane2 Jan 2020US 2020/0001957 A1The Boeing Company
- Pulsed power hybrid electric unmanned underwater vehicle propulsion system27 Dec 2018US 2018/0370608 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Brayton screw engine with brayton bottoming system43US 6,651,433 B12003
- Variable attitude submersible hydrofoil30US 5,237,952 A1993
- Pulsed power hybrid electric unmanned underwater vehicle propulsion system8US 10,414,477 B2Hamilton Sundstrand Corporation · 2019
- Recirculatory System6US 5,076,055 AC.D.S.S. Limited · 1991
- Gill for extracting oxygen from oxygen bearing fluids5US 4,662,904 AAquanautics Corporation · 1987