H02K 44/08
Magnetohydrodynamic [mhd] generators
Official title: Magnetohydrodynamic [MHD] generators
H02K44/08 (Magnetohydrodynamic [mhd] generators) appears on 213 US grants and 108 published applications in this corpus.
Search patents in H02K- Granted patents
- 213
- Published applications
- 108
- Assignees
- 104
- Inventors
- 360
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 10 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 13 | 0 |
| 1982 | 16 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 3 | 3 |
| 2007 | 3 | 3 |
| 2008 | 1 | 4 |
| 2009 | 1 | 6 |
| 2010 | 3 | 4 |
| 2011 | 4 | 2 |
| 2012 | 6 | 3 |
| 2013 | 4 | 7 |
| 2014 | 2 | 3 |
| 2015 | 2 | 3 |
| 2016 | 3 | 6 |
| 2017 | 3 | 2 |
| 2018 | 4 | 9 |
| 2019 | 3 | 6 |
| 2020 | 4 | 6 |
| 2021 | 7 | 7 |
| 2022 | 5 | 7 |
| 2023 | 8 | 9 |
| 2024 | 5 | 6 |
| 2025 | 6 | 6 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Temperature-control arrangement for a microelectric system18 Aug 2026US 12,713,558 B2Robert Bosch GmbH
- Low temperature magnetohydrodynamics power system7 Oct 2025US 12,438,432 B2Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources
- Compact annular linear induction pump5 Aug 2025US 12,381,466 B2Energy, United States Department of
- Electricity generator22 Jul 2025US 12,368,362 B2Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi
- Inertial hydrodynamic pump and wave engine3 Jun 2025US 12,320,323 B1Lone Gull Holdings, Ltd.
- Biased molten metal circuits13 Nov 2025US 2025/0350180 A1Brilliant Light Power, Inc.
- Inertial hydrodynamic pump and wave engine4 Sep 2025US 2025/0277481 A1Lone Gull Holdings, Ltd.
- Tubular Hydro-Voltaic Device26 Jun 2025US 2025/0211080 A1Amrita Vishwa Vidyapeetham
- Direct Energy Converter for Axisymmetric Mirror Fusion Reactor6 Mar 2025US 2025/0079964 A1Wisconsin Alumni Research Foundation
- Infrared plasma light recycling thermophotovoltaic hydrogen electrical power generator13 Feb 2025US 2025/0055363 A1Brilliant Light Power, Inc.
Most cited
By later US patents
- Submersible power generators and method of operating thereof331US 9,651,032 B2General Electric Company · 2017
- Solar-MHD energy conversion system81US 4,095,118 A1978
- Wave powered electric generator69US 4,110,630 A1978
- Channel of series-type magnetohydrodynamic generator50US 4,317,057 A1982
- Recovery and regeneration of spent MHD seed material by the formate process49US 5,057,294 AThe University of Tennessee Research Corporation · 1991