H02P 8/22
Control of step size
Official title: Control of step size; Intermediate stepping, e.g. microstepping
H02P8/22 (Control of step size) appears on 176 US grants and 122 published applications in this corpus.
Search patents in H02P- Granted patents
- 176
- Published applications
- 122
- Assignees
- 135
- Inventors
- 322
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 5 |
| 2003 | 4 | 8 |
| 2004 | 3 | 2 |
| 2005 | 7 | 1 |
| 2006 | 3 | 1 |
| 2007 | 0 | 4 |
| 2008 | 2 | 4 |
| 2009 | 1 | 5 |
| 2010 | 3 | 7 |
| 2011 | 6 | 5 |
| 2012 | 2 | 3 |
| 2013 | 7 | 4 |
| 2014 | 1 | 2 |
| 2015 | 6 | 5 |
| 2016 | 3 | 5 |
| 2017 | 7 | 8 |
| 2018 | 5 | 9 |
| 2019 | 10 | 6 |
| 2020 | 6 | 8 |
| 2021 | 6 | 5 |
| 2022 | 4 | 4 |
| 2023 | 5 | 5 |
| 2024 | 5 | 6 |
| 2025 | 5 | 4 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electric valve7 Apr 2026US 12,595,863 B2Fujikoki Corporation
- Apparatus for automatically controlling the flow rate of a fluid flowing along a duct and refrigeration or cooling system comprising the aforesaid apparatus10 Feb 2026US 12,546,410 B2Belimo Holding AG
- Stepper motor stall detection10 Feb 2026US 12,549,117 B2Analog Devices International Unlimited Company
- Control method for stepping motor of thermal printer2 Sep 2025US 12,407,281 B2Zhuhai Xprinter Electronics Technology Co., Ltd.
- Stepping motor drive device8 Jul 2025US 12,355,375 B2Oriental Motor Co., Ltd.
- Method, System, and Computer Program Product for Calibrating an Actuator17 Sep 2026US 2026/0280454 A1Bd Kiestra B. V.
- Power supply method for a stepper motor and drive device for operating the latter16 Jul 2026US 2026/0205038 A1Carel Industries S.P.A.
- Electric valve9 Jul 2026US 2026/0194157 A1Fujikoki Corporation
- Control system for dynamic stepper motor9 Jul 2026US 2026/0196442 A1APPLIED Materials.Inc.
- Circuit Device And Motor Control System11 Jun 2026US 2026/0163507 A1Seiko Epson Corporation
Most cited
By later US patents
- Electromagnetic actuator system using stepper motor with closed loop position sensing, electronic commutation and dynamic position and anomaly correction85US 4,618,808 AInternational Business Machines Corporation · 1986
- Micro-step drive system of a five-phase stepping motor68US 5,194,796 AOriental Motor Co., Ltd. · 1993
- Microstepping bipolar stepping motor controller for document positioning68US 5,359,271 AGTECH Corporation · 1994
- Vibration reduction for stepping motor by vector angle and vector length modulation67US 5,659,234 AAgfa-Gevaert · 1997
- Variable step rate precision pumping apparatus66US 5,932,987 AMillipore Corporation · 1999