H02P 25/14
Universal motors
Official title: Universal motors (H02P25/12 takes precedence)
H02P25/14 (Universal motors) appears on 213 US grants and 103 published applications in this corpus.
Search patents in H02P- Granted patents
- 213
- Published applications
- 103
- Assignees
- 97
- Inventors
- 330
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 0 |
| 2003 | 2 | 3 |
| 2004 | 4 | 5 |
| 2005 | 1 | 2 |
| 2006 | 3 | 3 |
| 2007 | 2 | 8 |
| 2008 | 3 | 3 |
| 2009 | 4 | 3 |
| 2010 | 4 | 4 |
| 2011 | 3 | 6 |
| 2012 | 1 | 6 |
| 2013 | 6 | 2 |
| 2014 | 4 | 2 |
| 2015 | 2 | 4 |
| 2016 | 4 | 7 |
| 2017 | 6 | 7 |
| 2018 | 4 | 13 |
| 2019 | 15 | 4 |
| 2020 | 5 | 11 |
| 2021 | 9 | 2 |
| 2022 | 4 | 2 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 3 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High-power battery-operated power tool30 Sep 2025US 12,427,641 B2Black & Decker Inc.
- Battery pack and method of manufacture26 Aug 2025US 12,397,408 B2Black & Decker Inc.
- Jam detection and jam tolerant motion control21 Jan 2025US 12,203,428 B2Woodward, Inc.
- Multi-axis servo control system26 Nov 2024US 12,155,328 B2Delta Electronics, Inc.
- Soft start for power tool with momentary switch and mechanical direction selection switch10 Sep 2024US 12,088,222 B2Ridge Tool Company
- Battery pack and method of manufacture9 Jul 2026US 2026/0192432 A1Black & Decker Inc.
- Jam detection and jam tolerant motion control25 Jun 2026US 2026/0177019 A1Woodward, Inc.
- Control method for braking an electric motor, control method for controlling an electric drive unit and computer program product27 Jun 2024US 2024/0213894 A1Hilti Aktiengesellschaft
- High-power battery-operated power tool21 Dec 2023US 2023/0405792 A1Black & Decker Inc.
- Multi-axis servo control system27 Apr 2023US 2023/0131842 A1Delta Electronics, Inc.
Most cited
By later US patents
- Method and apparatus for quiet variable motor speed control1,483US 7,330,004 B2Lutron Electronics Co., Inc. · 2008
- Anti-kickback power tool control220US 4,267,914 ABlack & Decker Inc. · 1981
- Vacuum cleaner127US 4,680,827 AInterlava AG · 1987
- Generic motor control system122US 7,646,155 B2Balck & Decker Inc. · 2010
- Generic motor control system121US 7,834,566 B2Black & Decker Inc. · 2010