F05B 2240/61
Hollow
Official title: hollow
F05B2240/61 (Hollow) appears on 69 US grants and 68 published applications in this corpus.
Search patents in F05B- Granted patents
- 69
- Published applications
- 68
- Assignees
- 54
- Inventors
- 209
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 6 |
| 2011 | 4 | 2 |
| 2012 | 3 | 2 |
| 2013 | 3 | 9 |
| 2014 | 4 | 3 |
| 2015 | 4 | 4 |
| 2016 | 0 | 3 |
| 2017 | 3 | 4 |
| 2018 | 2 | 3 |
| 2019 | 5 | 3 |
| 2020 | 2 | 2 |
| 2021 | 2 | 5 |
| 2022 | 7 | 4 |
| 2023 | 3 | 3 |
| 2024 | 3 | 2 |
| 2025 | 3 | 4 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hollow wind turbine main shaft and profiling forging process and use thereof25 Aug 2026US 12,716,108 B2Zenkung Heavy Industry (Jiangsu) Co., Ltd.
- Latching full-length hollow shaft wave energy converter for scalable conversion and storage26 May 2026US 12,637,998 B2
- Transfer of lubricant into the interior of a hollow shaft26 May 2026US 12,638,075 B2ZF Friedrichshafen AG
- Transmission and generator with intermediate shaft10 Feb 2026US 12,546,388 B2ZF Friedrichshafen AG
- Hydroelectric turbine12 Aug 2025US 12,385,462 B2The Fish Friendly Hydropower Company Limited
- Wind power generation device27 Aug 2026US 2026/0251125 A1Imadest Corporation
- Latching Full-Length Hollow Shaft Wave Energy Converter for Scalable Conversion and Storage21 May 2026US 2026/0139653 A1
- Hollow wind turbine main shaft and profiling forging process and use thereof30 Apr 2026US 2026/0117334 A1Zenkung Heavy Industry (Jiangsu) Co., Ltd.
- A latching full-length hollow shaft wave energy converter for scalable conversion and storage4 Dec 2025US 2025/0369416 A1
- Transfer of lubricant into the interior of a hollow shaft19 Jun 2025US 2025/0198505 A1ZF Friedrichshafen AG
Most cited
By later US patents
- Pump motor having fluid cooling system93US 5,997,261 ASiemens Canada Limited · 1999
- Oscillating centrifugal pump76US 5,405,251 A1995
- High speed fluid pump powered by an integral canned electrical motor43US 5,494,413 AWestinghouse Electric Corp. · 1996
- Low flow-rate pump35US 5,769,069 AHer Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources · 1998
- Wind turbine32US 7,550,863 B2Greenergy India Private Ltd · 2009