H02P 1/44
By phase-splitting with a capacitor
Official title: by phase-splitting with a capacitor
H02P1/44 (By phase-splitting with a capacitor) appears on 252 US grants and 147 published applications in this corpus.
Search patents in H02P- Granted patents
- 252
- Published applications
- 147
- Assignees
- 113
- Inventors
- 357
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 5 |
| 2004 | 6 | 6 |
| 2005 | 4 | 13 |
| 2006 | 12 | 10 |
| 2007 | 6 | 6 |
| 2008 | 4 | 7 |
| 2009 | 5 | 9 |
| 2010 | 11 | 4 |
| 2011 | 2 | 13 |
| 2012 | 7 | 1 |
| 2013 | 7 | 5 |
| 2014 | 4 | 5 |
| 2015 | 5 | 6 |
| 2016 | 4 | 4 |
| 2017 | 4 | 5 |
| 2018 | 7 | 4 |
| 2019 | 4 | 5 |
| 2020 | 8 | 7 |
| 2021 | 6 | 5 |
| 2022 | 5 | 9 |
| 2023 | 8 | 8 |
| 2024 | 5 | 3 |
| 2025 | 9 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Adaptive capacitor section for fan speed control2 Jun 2026US 12,644,463 B2Hubbell Incorporated
- Single-phase AC motor with a relay function10 Feb 2026US 12,549,076 B2Motor Competence Center Holding Flensburg GmbH
- Hard start kit for multiple replacement applications21 Oct 2025US 12,451,295 B2AmRad Manufacturing, LLC
- Hard start kit for multiple replacement applications25 Mar 2025US 12,260,991 B2AmRad Manufacturing, LLC
- Induction motors including speed sensing circuits for motor control4 Mar 2025US 12,244,188 B2Copeland Corporation
- Improved Reverse Magnetic Asynchronous Induction Motor Systems and Methods27 Aug 2026US 2026/0254332 A1Adventech, LLC
- Compressor with variable performance single phase induction motor25 Sep 2025US 2025/0300577 A1Copeland Scroll Compressors LP
- Hard start kit for multiple replacement applications24 Jul 2025US 2025/0239399 A1AmRad Manufacturing, LLC
- Hard start kit for multiple replacement applications24 Jul 2025US 2025/0239410 A1AmRad Manufacturing, LLC
- Controller and drive circuits for electric motors20 Jun 2024US 2024/0204698 A1Regal Beloit America, Inc.
Most cited
By later US patents
- Adjustable electronic potential relay115US 5,528,120 ASealed Unit Parts Co., Inc. · 1996
- Starting device and circuit for starting single phase motors104US 5,561,357 A1996
- Starting device and circuit for starting single phase motors97US 5,247,236 A1993
- Motor starting device91US 6,982,539 B1Diversitech Corporation · 2006
- Hard start kit for multiple replacement applications87US 8,456,795 B2American Radionic Company, Inc. · 2013