H02K 19/32
For pole-changing
Official title: for pole-changing
H02K19/32 (For pole-changing) appears on 13 US grants and 20 published applications in this corpus.
Search patents in H02K- Granted patents
- 13
- Published applications
- 20
- Assignees
- 16
- Inventors
- 39
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 2 | 3 |
| 2019 | 0 | 2 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 3 | 1 |
| 2023 | 0 | 4 |
| 2024 | 1 | 1 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Synchronous electrical machine and boat comprising such a machine23 Dec 2025US 12,506,391 B2GE Energy Power Conversion Technology Limited
- Dynamically reconfigurable synchronous motors and generators25 Nov 2025US 12,483,081 B2Quantentech Limited
- Rotor with interconnectable coils units, electric drive machine and motor vehicle4 Mar 2025US 12,244,190 B2Bayerische Motoren Werke Aktiengesellschaft
- Exciter windings for wide speed operation19 Mar 2024US 11,936,252 B2Hamilton Sundstrand Corporation (HSC)
- Solid state multi-pole and uni-pole electric generator rotor for AC/DC electric generators17 May 2022US 11,336,134 B2Holcomb Scientific Research Limited
- Dynamically Reconfigurable Synchronous Motors and Generators26 Jun 2025US 2025/0211148 A1Quantentech Limited
- Starter/generator arrangements for gas turbine engines18 Jul 2024US 2024/0243638 A1Hamilton Sundstrand Corporation
- Synchronous electrical machine and boat comprising such a machine23 Nov 2023US 2023/0378859 A1GE Energy Power Conversion Technology Limited
- Dynamically Reconfigurable Synchronous Motors and Generators20 Jul 2023US 2023/0231433 A1Quantentech Limited
- Rotor with Interconnectable Coils Units, Electric Drive Machine and Motor Vehicle11 May 2023US 2023/0147001 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Multipolar excitation systems13US 4,628,245 AAssociated Electrical Industries Limited · 1986
- Variable speed generator having multiple exciter windings and selectable, independently activatable pole configurations8US 9,621,090 B2ROLLS-ROYCE plc · 2017
- Power circuit for switching the number of poles on the rotor of synchronous machines by using rotative diodes5US 4,866,364 ATecnomasio Italiano Brown Boveri S.p.A. · 1989
- Reluctance motor having inductor pole coils located between adjacent ones of the salient poles of a rotor4US 9,917,484 B2Suzuki Motor Corporation · 2018
- Double stator switched reluctance apparatus3US 9,231,457 B2Board of Regents, The University of Texas System · 2016