H02K 23/64
Motors specially adapted for running on dc or ac by choice
Official title: Motors specially adapted for running on DC or AC by choice
H02K23/64 (Motors specially adapted for running on dc or ac by choice) appears on 16 US grants and 16 published applications in this corpus.
Search patents in H02K- Granted patents
- 16
- Published applications
- 16
- Assignees
- 13
- Inventors
- 34
- Latest grant
- 29 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 3 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Vacuum cleaner and system operable with AC and DC power sources29 Nov 2022US 11,510,540 B2Emerson Electric Co.
- Oil lubricated compressor7 Sep 2021US 11,111,913 B2Black & Decker Inc.
- Power tool26 Jan 2021US 10,903,730 B2Chervon (HK) Limited
- Power tool15 Dec 2020US 10,868,462 B2Positec Power Tools (Suzhou) Co., Ltd.
- Upright vacuum cleaner and system operable with AC and DC power sources17 Sep 2019US 10,413,146 B2Emerson Electric Co.
- Vacuum cleaner and system operable with ac and dc power sources21 Nov 2019US 2019/0350424 A1Emerson Electric Co.
- Power tool25 Jul 2019US 2019/0229599 A1Chervon (HK) Limited
- Upright vacuum cleaner and system operable with ac and dc power sources13 Dec 2018US 2018/0353037 A1Emerson Electric Co.
- Power tool23 Aug 2018US 2018/0241291 A1Positec Power Tools (Suzhou) Co., Ltd.
- Power Tool21 Jun 2018US 2018/0175757 A1Hitachi Koki Co., Ltd.
Most cited
By later US patents
- Hybrid AC/DC motor41US 6,172,437 B2Black & Decker Inc. · 2001
- Signaling and reduced torque ripple in brushless repulsion motors25US 7,166,984 B1Dynamotors, Inc. · 2007
- AC/DC air pump18US 5,102,306 A1992
- Immersed windings, monopole field, electromagnetic rotating machine18US 7,834,503 B2ClearWater Holdings, Ltd. · 2010
- Monopole field electric motor-generator with switchable coil configuration17US 7,348,703 B22008