H02P 7/34
Using ward-leonard arrangements
Official title: using Ward-Leonard arrangements
H02P7/34 (Using ward-leonard arrangements) appears on 27 US grants and 11 published applications in this corpus.
Search patents in H02P- Granted patents
- 27
- Published applications
- 11
- Assignees
- 26
- Inventors
- 56
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 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 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 3 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power transfer system for a gas turbine engine14 Jul 2026US 12,680,509 B2General Electric Company
- Propulsion channel for aircraft18 Feb 2025US 12,231,073 B2Safran
- Energy efficient motor-generator5 Nov 2024US 12,136,897 B2PAL-K Dynamics Inc.
- Direct current load identification system14 May 2024US 11,984,838 B2Haier US Appliance Solutions, Inc.
- Propulsive electric motor set with electric generator14 May 2024US 11,984,839 B2Airbus Operations GmbH
- Power transfer system for a gas turbine engine11 Sep 2025US 2025/0283435 A1General Electric Company
- System for generating movement of items in a specific pattern18 Apr 2024US 2024/0128893 A1
- Propulsion channel for aircraft3 Aug 2023US 2023/0246573 A1Safran
- Energy efficient motor-generator9 Feb 2023US 2023/0044966 A1PAL-K Dynamics Inc.
- Direct current load identification system19 Jan 2023US 2023/0015422 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Power control of a stalling motor32US 4,322,668 ACanadian General Electric Company Limited · 1982
- Method and means for measuring the torque delivered by an electric motor26US 3,965,407 ABucyrus-Erie Company · 1976
- Series parallel transition for power supply25US 4,009,431 AGeneral Motors Corporation · 1977
- Transient load damping circuit for excavator21US 4,031,440 ABucyrus-Erie Company · 1977
- Speed control system for a motor12US 4,263,988 AHitachi, Ltd. · 1981