B63H 21/383
For handling cooling-water
Official title: {for handling cooling-water (in outboard drives B63H20/28; in machines or engines in general F01P3/00)}
B63H21/383 (For handling cooling-water) appears on 193 US grants and 157 published applications in this corpus.
Search patents in B63H- Granted patents
- 193
- Published applications
- 157
- Assignees
- 93
- Inventors
- 398
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 9 | 7 |
| 2003 | 10 | 13 |
| 2004 | 12 | 7 |
| 2005 | 10 | 4 |
| 2006 | 7 | 6 |
| 2007 | 3 | 3 |
| 2008 | 2 | 0 |
| 2009 | 3 | 1 |
| 2010 | 0 | 5 |
| 2011 | 2 | 4 |
| 2012 | 5 | 3 |
| 2013 | 3 | 4 |
| 2014 | 7 | 4 |
| 2015 | 5 | 11 |
| 2016 | 6 | 5 |
| 2017 | 3 | 5 |
| 2018 | 5 | 9 |
| 2019 | 11 | 8 |
| 2020 | 9 | 5 |
| 2021 | 6 | 3 |
| 2022 | 6 | 4 |
| 2023 | 4 | 9 |
| 2024 | 7 | 15 |
| 2025 | 8 | 11 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermal management systems for marine vessels6 Oct 2026US 12,752,901 B1Brunswick Corporation
- Marine drives and methods of clearing debris from a cooling water intake on marine drives29 Sep 2026US 12,747,014 B1Brunswick Corporation
- Marine drives and cooling pumps for marine drives8 Sep 2026US 12,728,974 B1Brunswick Corporation
- Thermal management systems and methods thereof for marine vessels1 Sep 2026US 12,722,764 B1Brunswick Corporation
- Synchronous electrical machine, and associated propulsion oriented drive device, boat, and method for cooling such a machine28 Jul 2026US 12,695,337 B2GE Energy Power Conversion Technology Limited
- Outboard power control unit for controlling an electric motor of an outboard engine27 Aug 2026US 2026/0249970 A1Vision Marine Technologies
- A cooling assembly30 Jul 2026US 2026/0217353 A1AB Volvo Penta
- Thermal System for a Marine Vessel, Such System Installed in a Marine Vessel, a Marine Vessel Comprising the Thermal System, a Method of Controlling a Thermal System, and a Control Device26 Mar 2026US 2026/0086586 A1Frese A/S
- Fresh water marine flushing system and method12 Mar 2026US 2026/0070642 A1
- Fresh water marine flushing system and method12 Mar 2026US 2026/0070643 A1
Most cited
By later US patents
- Marine engine cooling system with a check valve to facilitate draining52US 6,379,201 B1Brunswick Corporation · 2002
- Closed loop cooling for a marine engine46US 5,004,042 ABrunswick Corporation · 1991
- Marine propulsion auxiliary cooling system38US 4,728,306 ABrunswick Corporation · 1988
- Heat exchanger for marine engine cooling system38US 5,746,270 ABrunswick Corporation · 1998
- Ship propulsion arrangement37US 5,403,216 AKvaerner Masa-Yards Oy · 1995