H02P 7/347
In which only the generator field is controlled
Official title: in which only the generator field is controlled
H02P7/347 (In which only the generator field is controlled) appears on 7 US grants and 1 published applications in this corpus.
Search patents in H02P- Granted patents
- 7
- Published applications
- 1
- Assignees
- 7
- Inventors
- 14
- Latest grant
- 5 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Energy efficient motor-generator5 Nov 2024US 12,136,897 B2PAL-K Dynamics Inc.
- System for supression of underdamped oscillations in ac power drawn by synchronous motors driving Ward-Leonard generators15 Jan 1985US 4,494,050 AThe Broken Hill Proprietary Company Limited
- Power control of a stalling motor30 Mar 1982US 4,322,668 ACanadian General Electric Company Limited
- On-line switching between two control parameters18 Nov 1980US 4,234,832 AAluminum Company of America
- Over-speed preventing apparatus for DC motor21 Jun 1977US 4,031,439 AHitachi, Ltd.
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
- Elevator speed control system8US 4,027,745 AMitsubishi Denki Kabushiki Kaisha · 1977
- Over-speed preventing apparatus for DC motor7US 4,031,439 AHitachi, Ltd. · 1977
- System for supression of underdamped oscillations in ac power drawn by synchronous motors driving Ward-Leonard generators4US 4,494,050 AThe Broken Hill Proprietary Company Limited · 1985