H02K 23/18
Having displaceable main or auxiliary brushes
Official title: having displaceable main or auxiliary brushes
H02K23/18 (Having displaceable main or auxiliary brushes) appears on 63 US grants and 29 published applications in this corpus.
Search patents in H02K- Granted patents
- 63
- Published applications
- 29
- Assignees
- 35
- Inventors
- 97
- Latest grant
- 2 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 2 | 1 |
| 2005 | 3 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 5 |
| 2013 | 2 | 1 |
| 2014 | 2 | 1 |
| 2015 | 3 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 3 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Predictive brush control for separately excited electric motors2 Jul 2024US 12,027,806 B2Audi AG
- Electronic switch module with oppositely-arranged power switches and discrete heat sinks11 Jun 2024US 12,010,799 B2Black & Decker Inc.
- Electronic switch module with an integrated flyback diode18 Oct 2022US 11,477,889 B2Black & Decker Inc.
- Direct current motor7 Jun 2022US 11,355,973 B2University of Shanghai for Science and Technology
- Brush module12 Oct 2021US 11,146,151 B2Schunk Carbon Technology GmbH
- Electronic switch module with oppositely-arranged power switches and discrete heat sinks29 Aug 2024US 2024/0292541 A1Black & Decker Inc.
- Predictive brush control for separately excited electric motors29 Sep 2022US 2022/0311198 A1Audi AG
- Direct current motor8 Jul 2021US 2021/0210997 A1University of Shanghai for Science and Technology
- Electronic switch module with oppositely-arranged power switches and discrete heat sinks2 Jan 2020US 2020/0006021 A1Black & Decker Inc.
- Electronic switch module with an integrated flyback diode2 Jan 2020US 2020/0008300 A1Black & Decker Inc.
Most cited
By later US patents
- Contact and terminal assembly for a brush wear indicator52US 4,420,705 AGeneral Electric Company · 1983
- Power tool with brush shifting and reversing switch assembly43US 5,089,729 ABlack & Decker Inc. · 1992
- Universal electric motor39US 5,196,747 AKress-Elektrik GmbH & Co., Elektromotoren Fabrik · 1993
- Reversing mechanism for electric motors39US 6,124,652 ABlack & Decker Inc. · 2000
- Mounting device for brushes in a reversible commutator motor34US 4,978,877 AEmerson Electric Co. · 1990