B63H 2001/165
Hubless propellers
Official title: {Hubless propellers, e.g. peripherally driven shrouds with blades projecting from the shrouds' inside surfaces}
B63H2001/165 (Hubless propellers) appears on 52 US grants and 41 published applications in this corpus.
Search patents in B63H- Granted patents
- 52
- Published applications
- 41
- Assignees
- 23
- Inventors
- 65
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 4 |
| 2003 | 3 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 2 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 4 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 5 |
| 2019 | 5 | 2 |
| 2020 | 3 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 3 |
| 2023 | 1 | 3 |
| 2024 | 2 | 1 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hubless propulsion unit10 Feb 2026US 12,545,384 B2Everon Corporation
- Water sports device19 Aug 2025US 12,391,337 B2Rosenxt Holding AG
- Underwater motor module for a water sports device24 Jun 2025US 12,337,937 B2ROSEN 2 Holding AG
- Propulsion system intended to be integrated into a boat22 Apr 2025US 12,280,862 B2Bluenav
- Variable-pitch propeller having optimal hub-to-tip diameter ratio3 Dec 2024US 12,157,550 B2Hyundai Heavy Industries Co., Ltd.
- Hubless propulsion unit4 Jun 2026US 2026/0152268 A1Everon Corporation
- Rim Driven Thruster and Method for Propelling a Ship3 Apr 2025US 2025/0108896 A1Insumo B.V.
- Propulsion system intended to be integrated into a boat16 May 2024US 2024/0158062 A1Bluenav
- Variable-pitch propeller having optimal hub-to-tip diameter ratio7 Sep 2023US 2023/0278685 A1Hyundai Heavy Industries Co., Ltd.
- High efficiency rotating equipment having contra-rotating propeller27 Apr 2023US 2023/0128150 A1Vam Co., Ltd.
Most cited
By later US patents
- Propulsion systems for submarine vessels47US 5,306,183 AHarbor Branch Oceanographic Institute, Inc. · 1994
- Outboard power unit having an internal propeller assembly for a boat35US 5,435,763 A1995
- Jet propulsion device for watercraft, aircraft, and circulating pumps27US 5,181,868 A1993
- Ribbon drive power generation apparatus and method25US 6,357,997 B12002
- Ribbon drive power generation for variable flow conditions24US 6,626,638 B22003