H02P 27/14
With three or more levels of voltage
Official title: with three or more levels of voltage
H02P27/14 (With three or more levels of voltage) appears on 158 US grants and 194 published applications in this corpus.
Search patents in H02P- Granted patents
- 158
- Published applications
- 194
- Assignees
- 109
- Inventors
- 446
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 4 |
| 2011 | 3 | 2 |
| 2012 | 2 | 1 |
| 2013 | 2 | 8 |
| 2014 | 2 | 9 |
| 2015 | 11 | 14 |
| 2016 | 5 | 4 |
| 2017 | 8 | 11 |
| 2018 | 11 | 13 |
| 2019 | 10 | 17 |
| 2020 | 16 | 10 |
| 2021 | 16 | 15 |
| 2022 | 17 | 12 |
| 2023 | 7 | 14 |
| 2024 | 17 | 21 |
| 2025 | 10 | 18 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Motor control device18 Aug 2026US 12,712,479 B2Nidec Corporation
- Electrical drive system and method9 Jun 2026US 12,651,990 B2DeepDrive GmbH
- Power tool and method for operating a power tool2 Jun 2026US 12,646,980 B2Hilti Aktiengesellschaft
- Systems and methods for stacked multi-level power converter implementations with linear scaling5 May 2026US 12,620,903 B2The Trustees of Columbia University in the City of New York
- Motor driver for starting up motor having any resistance5 May 2026US 12,620,919 B2Anpec Electronics Corporation
- Cell bypass for variable frequency drives30 Jul 2026US 2026/0221863 A1Innomotics GmbH
- Apparatus and Method for Optimizing Restricted Pulse Modulation Schedule23 Jul 2026US 2026/0213690 A1ABB Schweiz AG
- Multi-power converter circuit system for electric machine18 Jun 2026US 2026/0171953 A1Zunum Aero, Inc.
- Multiphase converter28 May 2026US 2026/0149385 A1ABB Schweiz AG
- Safe start of an ac motor7 May 2026US 2026/0128694 A1ABB Schweiz AG
Most cited
By later US patents
- DC bus voltage balancing and control in multilevel inverters175US 6,031,738 AWisconsin Alumni Research Foundation · 2000
- Five level high power motor drive converter and control system127US 6,058,031 AGeneral Electric Company · 2000
- Power converter for converting DC voltage into AC phase voltage having three levels of positive, zero and negative voltage80US 5,361,196 AHitachi, Ltd. · 1994
- Low voltage, two-level, six-pulse induction motor controller driving a medium-to-high voltage, three-or-more-level AC drive inverter bridge39US 7,834,579 B2Eaton Corporation · 2010
- Multilevel DC link inverter36US 6,577,087 B2UT-Battelle, LLC · 2003