H02K 23/26
Dc commutator motors or generators having mechanical commutator: characterised by the armature
Official title: characterised by the armature windings
H02K23/26 (Dc commutator motors or generators having mechanical commutator: characterised by the armature) appears on 331 US grants and 252 published applications in this corpus.
Search patents in H02K- Granted patents
- 331
- Published applications
- 252
- Assignees
- 130
- Inventors
- 531
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 1 |
| 2002 | 8 | 10 |
| 2003 | 4 | 8 |
| 2004 | 11 | 14 |
| 2005 | 9 | 9 |
| 2006 | 10 | 10 |
| 2007 | 7 | 13 |
| 2008 | 2 | 12 |
| 2009 | 13 | 19 |
| 2010 | 14 | 11 |
| 2011 | 9 | 17 |
| 2012 | 11 | 12 |
| 2013 | 11 | 18 |
| 2014 | 15 | 17 |
| 2015 | 14 | 11 |
| 2016 | 13 | 13 |
| 2017 | 14 | 12 |
| 2018 | 11 | 9 |
| 2019 | 14 | 9 |
| 2020 | 5 | 5 |
| 2021 | 11 | 7 |
| 2022 | 4 | 3 |
| 2023 | 4 | 6 |
| 2024 | 4 | 2 |
| 2025 | 4 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electromagnetic transducer with dual flux13 Jan 2026US 12,523,634 B2Cochlear Limited
- Direct-current motor16 Dec 2025US 12,500,471 B2Denso Corporation
- Dual armature single field DC motor/generator26 Aug 2025US 12,401,257 B1Wilborn, LLC
- Rotor of an electric motor, method for manufacturing a rotor and electric motor12 Aug 2025US 12,388,336 B2Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg
- Rotor with interconnectable coils units, electric drive machine and motor vehicle4 Mar 2025US 12,244,190 B2Bayerische Motoren Werke Aktiengesellschaft
- Electromagnetic transducer with dual flux20 Aug 2026US 2026/0243733 A1Cochlear Limited
- Synchronous electric machine for aircraft, associated propulsion device, turboshaft engine and method30 Oct 2025US 2025/0337306 A1Safran Helicopter Engines
- Electric motor with electrical generation capacity18 Sep 2025US 2025/0293576 A1
- Brush direct current electric motor12 Jun 2025US 2025/0192655 A1
- Armature and rotating electric machine12 Sep 2024US 2024/0305154 A1Denso Corporation
Most cited
By later US patents
- DC motor with dual commutator bar set and selectable series and parallel connected coils1,444US 7,893,586 B2Black & Decker Inc. · 2011
- Methods and apparatus for increasing power of permanent magnet motors1,432US 6,777,838 B22004
- Dynamoelectric machine having a large magnetic gap and flexible printed circuit phase winding97US 4,645,961 AThe Charles Stark Draper Laboratory, Inc. · 1987
- Methods and apparatus for overlapping windings91US 8,736,133 B1Boulder Wind Power, Inc. · 2014
- Independent-drive wheel for a wheel-mounted vehicle64US 5,164,623 A1992