H02K 55/06
Dynamo-electric machines having windings operating at cryogenic temperatures: of the homopolar type
Official title: of the homopolar type
H02K55/06 (Dynamo-electric machines having windings operating at cryogenic temperatures: of the homopolar type) appears on 26 US grants and 21 published applications in this corpus.
Search patents in H02K- Granted patents
- 26
- Published applications
- 21
- Assignees
- 15
- Inventors
- 54
- Latest grant
- 24 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 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 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 3 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 3 | 0 |
| 2009 | 0 | 4 |
| 2010 | 1 | 2 |
| 2011 | 3 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Homopolar turbine24 May 2022US 11,342,831 B2Lockheed Martin Corporation
- Superconducting devices, such as slip-rings and homopolar motors/generators30 Mar 2021US 10,965,077 B2Moog Inc.
- Superconducting devices, such as slip-rings and homopolar motors/generators15 Oct 2019US 10,446,995 B2Moog Inc.
- Electric vehicles with removable homopolar generators for increased driving distances10 Jul 2018US 10,017,056 B1Premergy, Inc.
- Low speed electromagnetic turbine12 Sep 2017US 9,762,094 B2Heron Energy Pte Ltd
- Superconductor-based engine22 Feb 2024US 2024/0063705 A1
- Homopolar turbine8 Apr 2021US 2021/0104945 A1Lockheed Martin Corporation
- Superconducting devices, such as slip-rings and homopolar motors/generators7 May 2020US 2020/0144778 A1Moog Inc.
- Superconducting devices, such as slip-rings and homopolar motors/generators31 Aug 2017US 2017/0250512 A1Moog Inc.
- Electromagnetic turbine30 Jul 2015US 2015/0214824 A1Guina Research and Development Pty Ltd
Most cited
By later US patents
- Homopolar dynamo-electric machines40US 3,944,865 AReyrolle Parsons Limited · 1976
- Homopolar machine with shaft axial thrust compensation for reduced thrust bearing wear and noise29US 6,856,062 B2General Atomics · 2005
- Superconducting rotating machines with stationary field coils24US 7,315,103 B2General Electric Company · 2008
- Superconducting DC machine22US 5,032,748 ASumitomo Heavy Industries, Ltd. · 1991
- Homopolar transformer for conversion of electrical energy17US 5,821,659 AThe United States of America as represented by the Secretary of the Navy · 1998