H02P 1/16
Arrangements for starting electric motors or dynamo-electric converters: for starting dynamo-electric motors
Official title: for starting dynamo-electric motors or dynamo-electric converters
H02P1/16 (Arrangements for starting electric motors or dynamo-electric converters: for starting dynamo-electric motors) appears on 1,480 US grants and 1,118 published applications in this corpus.
Search patents in H02P- Granted patents
- 1,480
- Published applications
- 1,118
- Assignees
- 689
- Inventors
- 2,774
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 18 | 0 |
| 1978 | 18 | 0 |
| 1979 | 9 | 0 |
| 1980 | 11 | 0 |
| 1981 | 14 | 0 |
| 1982 | 18 | 0 |
| 1983 | 19 | 0 |
| 1984 | 34 | 0 |
| 1985 | 13 | 0 |
| 1986 | 20 | 0 |
| 1987 | 34 | 0 |
| 1988 | 23 | 0 |
| 1989 | 18 | 0 |
| 1990 | 11 | 0 |
| 1991 | 17 | 0 |
| 1992 | 15 | 0 |
| 1993 | 13 | 0 |
| 1994 | 19 | 0 |
| 1995 | 25 | 0 |
| 1996 | 24 | 0 |
| 1997 | 17 | 0 |
| 1998 | 27 | 0 |
| 1999 | 22 | 0 |
| 2000 | 29 | 0 |
| 2001 | 26 | 7 |
| 2002 | 18 | 20 |
| 2003 | 23 | 27 |
| 2004 | 22 | 31 |
| 2005 | 20 | 25 |
| 2006 | 27 | 36 |
| 2007 | 27 | 29 |
| 2008 | 20 | 35 |
| 2009 | 32 | 38 |
| 2010 | 29 | 46 |
| 2011 | 26 | 46 |
| 2012 | 42 | 33 |
| 2013 | 50 | 55 |
| 2014 | 42 | 42 |
| 2015 | 39 | 61 |
| 2016 | 42 | 70 |
| 2017 | 55 | 61 |
| 2018 | 54 | 58 |
| 2019 | 62 | 79 |
| 2020 | 78 | 73 |
| 2021 | 57 | 47 |
| 2022 | 52 | 50 |
| 2023 | 46 | 48 |
| 2024 | 46 | 43 |
| 2025 | 46 | 33 |
| 2026 | 17 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02P 1/26For starting an individual polyphase induction motor422
- H02P 1/42For starting an individual single-phase induction motor397
- H02P 1/46For starting an individual synchronous motor307
- H02P 1/18For starting an individual dc motor176
- H02P 1/54For starting two or more dynamo-electric motors83
- H02P 1/163For starting an individual reluctance motor57
- H02P 1/24For starting an individual ac commutator motor40
- H02P 1/166Driving load with high inertia26
Recent patents
- System and method for providing inrush current limiting for induction motor starting29 Sep 2026US 12,749,991 B2ABB Schweiz AG
- Motor drive device29 Sep 2026US 12,749,992 B2Kabushiki Kaisha Toyota Jidoshokki
- Motor control device29 Sep 2026US 12,749,996 B2Lutron Technology Company LLC
- Startup fault checking of paralleled devices7 Jul 2026US 12,673,583 B2Caterpillar Inc.
- Startup control circuit, power tool, and startup control method thereof23 Jun 2026US 12,665,528 B2Greenworks (Jiangsu) Co., Ltd.
- Improved Reverse Magnetic Asynchronous Induction Motor Systems and Methods27 Aug 2026US 2026/0254332 A1Adventech, LLC
- Control circuit and method for dc motors6 Aug 2026US 2026/0230009 A1Intex Marketing Ltd.
- Multiple pulse initialization of a bldc motor encoder6 Aug 2026US 2026/0230011 A1Robert Bosch GmbH
- Method and apparatus for controlling starting current of motor30 Jul 2026US 2026/0221905 A1Schneider Electric Industries SAS
- Soft start control method for multiple motors, and inverter using same30 Jul 2026US 2026/0221906 A1Ls Electric Co., Ltd.
Most cited
By later US patents
- DC fan speed control1,219US 4,856,078 AZenith Electronics Corporation · 1989
- Electrical hand tool machine with soft-start664US 6,882,127 B2Hilti Aktiengesellschaft · 2005
- Variable speed DC motor controller apparatus particularly adapted for control of portable-power tools228US 5,014,793 AMeasurement Specialties, Inc. · 1991
- Electric motor and motor control173US 8,575,873 B2Nidec Motor Corporation · 2013
- Electric motor and motor control166US 9,893,660 B2Nidec Motor Corporation · 2018