H02P 8/20
Characterised by bidirectional operation
Official title: characterised by bidirectional operation
H02P8/20 (Characterised by bidirectional operation) appears on 36 US grants and 14 published applications in this corpus.
Search patents in H02P- Granted patents
- 36
- Published applications
- 14
- Assignees
- 39
- Inventors
- 94
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 3 |
| 2020 | 3 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oscillating fan control system and control method thereof24 Jun 2025US 12,338,831 B2
- Plug-and-play stepper motor for a pointer display assembly20 Dec 2022US 11,530,936 B2Denso Corporation
- Electronic timepiece, movement, and motor control circuit for a timepiece5 Apr 2022US 11,294,334 B2Seiko Epson Corporation
- Power seat system for sensing motor reverse rotation and method thereof17 Nov 2020US 10,840,837 B2Hyundai Dymos Incorporated
- System and method for controlling a motor in a catheter procedure system14 Jul 2020US 10,709,510 B2Corindus, Inc.
- Method for adjusting oscillation angle of fan and fan11 Jun 2026US 2026/0160259 A1Sinowell (Shanghai) Co., Ltd.
- Oscillating Fan Control System And Control Method Thereof1 May 2025US 2025/0137461 A1AC Infinity Inc.
- Control apparatus of electrically driven valve, electrically driven valve, and electrically driven valve unit using the same22 Aug 2024US 2024/0280185 A1Fujikoki Corporation
- Plug-And-Play Stepper Motor For A Pointer Display Assembly4 Feb 2021US 2021/0033435 A1Denso Corporation
- Electronic Timepiece, Movement, And Motor Control Circuit For A Timepiece6 Aug 2020US 2020/0249631 A1Seiko Epson Corporation
Most cited
By later US patents
- Stepping motor exciting system58US 4,477,756 AFuji Xerox Co., Ltd. · 1984
- System and method for controlling a motor in a catheter procedure system45US 10,709,510 B2Corindus, Inc. · 2020
- Drive apparatus having at least two electric motors44US 4,289,997 AKeiper Automobiltechnik GmbH & Co. KG · 1981
- Method and apparatus for controlling a stepper motor39US 4,489,259 ARodime PLC · 1984
- Power module for electronic control of a DC motor29US 5,063,338 AAlcatel Espace · 1991