B63H 1/22
The blades being foldable
Official title: the blades being foldable
B63H1/22 (The blades being foldable) appears on 49 US grants and 26 published applications in this corpus.
Search patents in B63H- Granted patents
- 49
- Published applications
- 26
- Assignees
- 24
- Inventors
- 60
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 2 | 3 |
| 2020 | 5 | 2 |
| 2021 | 2 | 4 |
| 2022 | 2 | 2 |
| 2023 | 2 | 4 |
| 2024 | 4 | 1 |
| 2025 | 2 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrofoil apparatuses, systems, and methods for marine vessels30 Jun 2026US 12,668,328 B1Brunswick Corporation
- Propeller with folding blades and propulsion system12 May 2026US 12,623,761 B2Velettrica S.R.L.
- Boat drive13 Jan 2026US 12,522,334 B2Torqeedo GmbH
- Watercraft device with hydrofoil and electric propeller system30 Dec 2025US 12,509,186 B2Kai Concepts, LLC
- Hybrid propulsor for watercraft29 Apr 2025US 12,286,203 B2
- Propeller with folding blades and propulsion system10 Sep 2026US 2026/0264822 A1Velettrica S.R.L.
- Marine controllable-pitch propeller, propeller system for a boat and boat including the same30 Apr 2026US 2026/0116520 A1AB Volvo Penta
- Propeller with folding blades and propulsion system19 Jun 2025US 2025/0196982 A1Velettrica S.R.L.
- Watercraft device with hydrofoil and electric propeller system6 Jun 2024US 2024/0182136 A1Kai Concepts, LLC
- A watercraft vehicle and method of manoeuvring the vehicle17 Aug 2023US 2023/0257089 A1Saab AB
Most cited
By later US patents
- Foldable propeller assembly122US 5,183,384 A1993
- Folding propeller112US 6,152,693 AGori marine as · 2000
- Extendable and retractable propeller for watercraft109US 4,207,028 A1980
- Foldable propeller34US 6,371,726 B1AB Volvo Penta · 2002
- Watercraft device with hydrofoil and electric propeller system28US 10,597,118 B2Kai Concepts, LLC · 2020