H01R 39/388
Characterised by the material of the brush holder
Official title: {characterised by the material of the brush holder}
H01R39/388 (Characterised by the material of the brush holder) appears on 21 US grants and 21 published applications in this corpus.
Search patents in H01R- Granted patents
- 21
- Published applications
- 21
- Assignees
- 17
- Inventors
- 47
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 3 |
| 2021 | 0 | 1 |
| 2022 | 4 | 2 |
| 2023 | 1 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Grounding brush assembly with improved electrical conductivity properties14 Jul 2026US 12,683,346 B2Aktiebolaget Skf
- System and method for monitoring the status of one or more components of an electrical machine28 Jan 2025US 12,212,210 B2Cutsforth, Inc.
- Carbon brush for transferring high currents10 Dec 2024US 12,166,322 B2Schunk Kohlenstofftechnik GmbH
- System and method for monitoring the status of one or more components of an electrical machine2 Apr 2024US 11,949,314 B2Cutsforth, Inc.
- System and method for monitoring the status of one or more components of an electrical machine28 Mar 2023US 11,616,413 B2Cutsforth, Inc.
- Diverting device for diverting electrical currents, and machine comprising a diverting device of this type11 Dec 2025US 2025/0379408 A1
- System and method for monitoring the status of one or more components of an electrical machine13 Jun 2024US 2024/0195259 A1Cutsforth, Inc.
- System and method for monitoring the status of one or more components of an electrical machine22 Jun 2023US 2023/0198332 A1Cutsforth, Inc.
- Grounding brush assembly with improved electrical conductivity properties1 Jun 2023US 2023/0170658 A1Aktiebolaget Skf
- Carbon brush for transferring high currents13 Oct 2022US 2022/0329028 A1Schunk Kohlenstofftechnik GmbH
Most cited
By later US patents
- Electric motor brush assembly14US 6,798,109 B2Black & Decker Inc. · 2004
- EMI/RFI suppressing brush holder assembly for electric machines11US 5,208,499 ACarbone-Lorraine of North America · 1993
- Manufacturing method for brush holder10US 7,032,290 B2ASMO Co.LTD · 2006
- Propeller deicing brush block5US 9,742,136 B2Hamilton Sundstrand Corporation · 2017
- System and method for monitoring the status of one or more components of an electrical machine4US 11,355,991 B2Cutsforth, Inc. · 2022