B63H 2020/006
Of coaxial type
Official title: {of coaxial type, e.g. of counter-rotative type}
B63H2020/006 (Of coaxial type) appears on 80 US grants and 58 published applications in this corpus.
Search patents in B63H- Granted patents
- 80
- Published applications
- 58
- Assignees
- 21
- Inventors
- 129
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 3 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 2 | 5 |
| 2017 | 1 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 2 | 5 |
| 2022 | 10 | 8 |
| 2023 | 9 | 9 |
| 2024 | 7 | 10 |
| 2025 | 12 | 6 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Chain driven marine propulsion system with steerable gearcase and dual counterrotating propellers41US 4,932,907 ABrunswick Corporation · 1990
- Chain drive marine propulsion system with dual counterrotating propellers39US 4,887,983 ABrunswick Corporation · 1989
- Counter-rotating surfacing marine drive31US 5,230,644 ABrunswick Corporation · 1993
- Marine drive lower unit with sequentially loaded multiple thrust bearings30US 4,832,636 ABrunswick Corporation · 1989
- Reduced drag stable Vee bottom planing boat28US 5,685,253 ABrunswick Corporation · 1997