H02P
Control or regulation of electric motors, electric generators or dynamo-electric converters
Official title: Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
H02P (Control or regulation of electric motors, electric generators or dynamo-electric converters) appears on 31,763 US grants and 29,035 published applications in this corpus.
Search patents in H02P- Granted patents
- 31,763
- Published applications
- 29,035
- Assignees
- 6,363
- Inventors
- 43,160
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 223 | 0 |
| 1977 | 194 | 0 |
| 1978 | 206 | 0 |
| 1979 | 146 | 0 |
| 1980 | 179 | 0 |
| 1981 | 246 | 0 |
| 1982 | 207 | 0 |
| 1983 | 225 | 0 |
| 1984 | 344 | 0 |
| 1985 | 270 | 0 |
| 1986 | 237 | 0 |
| 1987 | 336 | 0 |
| 1988 | 260 | 0 |
| 1989 | 246 | 0 |
| 1990 | 219 | 0 |
| 1991 | 269 | 0 |
| 1992 | 228 | 0 |
| 1993 | 277 | 0 |
| 1994 | 267 | 0 |
| 1995 | 271 | 0 |
| 1996 | 317 | 0 |
| 1997 | 301 | 0 |
| 1998 | 448 | 0 |
| 1999 | 411 | 0 |
| 2000 | 400 | 0 |
| 2001 | 372 | 118 |
| 2002 | 394 | 404 |
| 2003 | 385 | 494 |
| 2004 | 462 | 581 |
| 2005 | 448 | 589 |
| 2006 | 604 | 583 |
| 2007 | 515 | 688 |
| 2008 | 447 | 799 |
| 2009 | 538 | 873 |
| 2010 | 581 | 952 |
| 2011 | 703 | 927 |
| 2012 | 820 | 938 |
| 2013 | 880 | 1246 |
| 2014 | 1047 | 1456 |
| 2015 | 1181 | 1433 |
| 2016 | 1221 | 1440 |
| 2017 | 1467 | 1649 |
| 2018 | 1491 | 1634 |
| 2019 | 1720 | 1844 |
| 2020 | 1665 | 1866 |
| 2021 | 1505 | 1577 |
| 2022 | 1544 | 1598 |
| 2023 | 1379 | 1531 |
| 2024 | 1471 | 1604 |
| 2025 | 1413 | 1273 |
| 2026 | 783 | 938 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- H02P 6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation8,403
- H02P 27/00Arrangements or methods for the control of ac motors characterised by the6,740
- H02P 29/00Arrangements for regulating or controlling electric motors, appropriate for both ac and5,329
- H02P 25/00Arrangements or methods for the control of ac motors characterised by the4,454
- H02P 21/00Arrangements or methods for the control of electric machines by vector control4,224
- H02P 9/00Arrangements for controlling electric generators for the purpose of obtaining a desired4,082
- H02P 23/00Arrangements or methods for the control of ac motors characterised by a3,551
- H02P 7/00Arrangements for regulating or controlling the speed or torque of electric dc2,721
All 25 main groupsShow fewer
- H02P 3/00Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters2,062
- H02P 1/00Arrangements for starting electric motors or dynamo-electric converters1,886
- H02P 5/00Arrangements specially adapted for regulating or controlling the speed or torque of1,626
- H02P 2101/00Special adaptation of control arrangements for generatorsIndexing code1,549
- H02P 8/00Arrangements for controlling dynamo-electric motors rotating step by step1,447
- H02P 2207/00Indexing scheme relating to controlling arrangements characterised by the type of motorIndexing code985
- H02P 2201/00Indexing scheme relating to controlling arrangements characterised by the converter usedIndexing code677
- H02P 31/00Arrangements for regulating or controlling electric motors not provided for in groups449
- H02P 2209/00Indexing scheme relating to controlling arrangements characterised by the waveform of theIndexing code441
- H02P 2203/00Indexing scheme relating to controlling arrangements characterised by the means for detectingIndexing code433
- H02P 2205/00Indexing scheme relating to controlling arrangements characterised by the control loopsIndexing code394
- H02P 13/00Arrangements for controlling transformers, reactors or choke coils, for the purpose of180
- H02P 4/00Arrangements specially adapted for regulating or controlling the speed or torque of175
- H02P 2103/00Controlling arrangements characterised by the type of generatorIndexing code96
- H02P 15/00Arrangements for controlling dynamo-electric brakes or clutches67
- H02P 11/00Arrangements for controlling dynamo-electric converters53
- H02P 17/00Arrangements for controlling dynamo-electric gears27
Recent patents
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- Drug delivery device with an improved mechanism for controlling the delivery rate8 Oct 2026US 2026/0306740 A1Ypsomed AG
- Power tool dynamic motor field weakening system and method8 Oct 2026US 2026/0307231 A1Milwaukee Electric Tool Corporation
- Drive system of working machine8 Oct 2026US 2026/0308868 A1
- Managing regenerative energy of reciprocating pumping unit8 Oct 2026US 2026/0309009 A1Weatherford Technology Holdings, LLC
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Most cited
By later US patents
- Powered surgical tool with control module that contains a sensor for remotely monitoring the tool power generating unit1,623US 7,638,958 B2Stryker Corporation · 2009
- Cordless, battery operated surical tool1,621US 5,747,953 AStryker Corporation · 1998
- DC powered surgical handpiece having a motor control circuit1,602US 5,268,622 AStryker Corporation · 1993
- Electronically commutated motor1,555US 4,169,990 AGeneral Electric Company · 1979
- Amperage control for protection of battery over current in power tools1,521US 7,133,601 B2Black & Decker Inc. · 2006