H02K 47/00
Dynamo-electric converters
H02K47/00 (Dynamo-electric converters) appears on 198 US grants and 196 published applications in this corpus.
Search patents in H02K- Granted patents
- 198
- Published applications
- 196
- Assignees
- 109
- Inventors
- 379
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 4 |
| 2003 | 2 | 3 |
| 2004 | 3 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 1 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 4 |
| 2011 | 1 | 6 |
| 2012 | 1 | 6 |
| 2013 | 0 | 5 |
| 2014 | 7 | 15 |
| 2015 | 7 | 11 |
| 2016 | 10 | 23 |
| 2017 | 12 | 17 |
| 2018 | 14 | 15 |
| 2019 | 16 | 12 |
| 2020 | 10 | 24 |
| 2021 | 13 | 14 |
| 2022 | 12 | 6 |
| 2023 | 9 | 6 |
| 2024 | 2 | 6 |
| 2025 | 9 | 8 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods of wheel based power generation for electronic components on retail carts4 Aug 2026US 12,698,021 B1Walmart Apollo, LLC
- Duplex inverter generator4 Aug 2026US 12,700,786 B2Imperial Industrial Supply Co.
- Electric compressor19 May 2026US 12,633,796 B2Hanon Systems
- Assembly comprising a generator and electric motors, for a vehicle air-conditioning or refrigeration system30 Dec 2025US 12,508,911 B2Moteurs Leroy-Somer
- Motor-alternator-motor (MAM) systems and methods for using same30 Dec 2025US 12,512,743 B2
- Electric motor (ii)13 Aug 2026US 2026/0238106 A1
- Systems and methods of wheel based power generation for electronic components on retail carts6 Aug 2026US 2026/0225635 A1Walmart Apollo, LLC
- Duplex inverter generator2 Jul 2026US 2026/0189118 A1Imperial Industrial Supply Co.
- Power coupling devices for high-temperature superconductors12 Mar 2026US 2026/0074587 A1Microsoft Technology Licensing, LLC
- Micro-Combined Heat and Power System and Method of Use12 Feb 2026US 2026/0045855 A1Axiom Energy Group, LLC
Most cited
By later US patents
- Method and apparatus for converting a conventional internal combustion engine into a high speed electric motor and generator77US 4,631,455 A1986
- Versatile AC dynamo-electric machine73US 5,838,085 APrecise Power Corporation · 1998
- DC rotary machine67US 4,259,604 ACanon Kabushiki Kaisha · 1981
- Rotary converter machine for direct transfer of electric energy by flux linkage between windings on a stator pack62US 4,517,471 AAnton Piller GmbH & Co. KG · 1985
- Non-interruptible power supply systems61US 4,168,459 APrecise Power Corporation · 1979