H02K 44/00
Machines in which the dynamo-electric interaction between a plasma or flow of
Official title: Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
H02K44/00 (Machines in which the dynamo-electric interaction between a plasma or flow of) appears on 433 US grants and 259 published applications in this corpus.
Search patents in H02K- Granted patents
- 433
- Published applications
- 259
- Assignees
- 238
- Inventors
- 830
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 12 | 0 |
| 1979 | 11 | 0 |
| 1980 | 9 | 0 |
| 1981 | 19 | 0 |
| 1982 | 19 | 0 |
| 1983 | 12 | 0 |
| 1984 | 13 | 0 |
| 1985 | 11 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 14 | 0 |
| 1989 | 12 | 0 |
| 1990 | 6 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 14 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 10 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 4 |
| 2003 | 2 | 2 |
| 2004 | 3 | 3 |
| 2005 | 0 | 8 |
| 2006 | 4 | 13 |
| 2007 | 5 | 7 |
| 2008 | 3 | 8 |
| 2009 | 4 | 8 |
| 2010 | 5 | 8 |
| 2011 | 7 | 7 |
| 2012 | 11 | 9 |
| 2013 | 9 | 9 |
| 2014 | 6 | 10 |
| 2015 | 4 | 10 |
| 2016 | 6 | 13 |
| 2017 | 12 | 9 |
| 2018 | 9 | 13 |
| 2019 | 6 | 10 |
| 2020 | 7 | 10 |
| 2021 | 11 | 18 |
| 2022 | 15 | 19 |
| 2023 | 17 | 19 |
| 2024 | 13 | 16 |
| 2025 | 17 | 12 |
| 2026 | 8 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Conductive liquid pumping system22 Sep 2026US 12,744,443 B2Blue Origin Manufacturing, LLC
- Magnetic field device and method of driving molten metal22 Sep 2026US 12,744,444 B2Zmag, Ltd.
- Power load bank cart to improve magnetic field grading for a pump8 Sep 2026US 12,732,083 B1Aroboticscompany Inc.
- Temperature-control arrangement for a microelectric system18 Aug 2026US 12,713,558 B2Robert Bosch GmbH
- Magnetohydrodynamic pump21 Jul 2026US 12,686,477 B1HRL Laboratories, LLC
- An electrohydrodynamic pump for pumping a dielectric fluid1 Oct 2026US 2026/0302909 A1APR Technologies AB
- Cooling system for electromagnetic pump system24 Sep 2026US 2026/0291358 A1Nano Nuclear Energy Inc.
- Miniature dc electromagnetic pumps of heavy and alkali liquid metals at up to 500 °c for nuclear and industrial applications27 Aug 2026US 2026/0254336 A1UNM Rainforest Innovations
- Canned Rotodynamic Flow Machine For A Molten Salt Nuclear Reactor And An Active Magnetic Bearing For Use In A Flow Machine For A Molten Salt Nuclear Reactor20 Aug 2026US 2026/0243262 A1Copenhagen Atomics A/S
- Conductive liquid pumping system18 Jun 2026US 2026/0171881 A1Blue Origin Manufacturing, LLC
Most cited
By later US patents
- Submersible power generators and method of operating thereof331US 9,651,032 B2General Electric Company · 2017
- Fluidic devices209US 6,318,970 B1Micralyne Inc. · 2001
- Micromachined magnetohydrodynamic actuators and sensors169US 6,146,103 AThe Regents of the University of California · 2000
- Non-mechanical magnetic pump for liquid cooling125US 5,763,951 ANorthrop Grumman Corporation · 1998
- Solar-MHD energy conversion system81US 4,095,118 A1978