H01R 39/27
End caps on carbon brushes to transmit spring pressure
H01R39/27 (End caps on carbon brushes to transmit spring pressure) appears on 9 US grants and 4 published applications in this corpus.
Search patents in H01R- Granted patents
- 9
- Published applications
- 4
- Assignees
- 5
- Inventors
- 14
- Latest grant
- 9 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Holder for slip ring brushes9 Nov 2021US 11,171,457 B2Schleifring GmbH
- Carbon brush with disconnection apparatus21 Jun 2016US 9,373,990 B2Robert Bosch GmbH
- Electrical cord roll-up apparatus26 Apr 2005US 6,884,109 B1
- Starter generator with slots in the commutator head assembly15 May 2001US 6,232,694 B1
- Method of assembling a brush holder assembly9 Mar 1999US 5,878,480 AUT Automotive Dearborn, Inc.
Most cited
By later US patents
- Brush holding device31US 4,855,631 AMitsuba Electric Manufacturing Co., Ltd. · 1989
- End cap and brush holder assembly for dynamoelectric machine8US 5,644,182 AUnited Technologies Automotive, Inc. · 1997
- Method of assembling a brush holder assembly6US 5,878,480 AUT Automotive Dearborn, Inc. · 1999
- Apparatus for feeding fuel to a motor vehicle engine from a fuel tank4US 5,283,494 ARobert Bosch GmbH · 1994
- End cap and brush holder assembly for dynamoelectric machine4US 5,471,107 A1995