H01R 39/42
Devices for lifting brushes
H01R39/42 (Devices for lifting brushes) appears on 48 US grants and 35 published applications in this corpus.
Search patents in H01R- Granted patents
- 48
- Published applications
- 35
- Assignees
- 27
- Inventors
- 71
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 0 | 2 |
| 2006 | 3 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 2 |
| 2009 | 2 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 1 | 3 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 7 |
| 2016 | 7 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 0 | 3 |
| 2023 | 1 | 1 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Substrate treating apparatus and substrate treating method4 Nov 2025US 12,463,086 B2Semes Co., Ltd.
- Brush holder assembly18 Jun 2024US 12,015,229 B2Cutsforth, Inc.
- Liftable brush holder system able to operate statically and corresponding rotary electric machine9 Apr 2024US 11,955,867 B2Weg Equipamentos EléTricos S.A.
- Brush holder and supporting rod device mating together28 Nov 2023US 11,831,114 B2MERSEN Osterreich Hittisau Ges.m.b.H
- Brush holder for electrical contact brushes16 Nov 2021US 11,177,716 B2AB Dynamoborstfabriken
- Substrate treating apparatus and substrate treating method20 Apr 2023US 2023/0117064 A1Semes Co., Ltd.
- Liftable brush holder system able to operate statically and corresponding rotary electric machine4 Aug 2022US 2022/0247256 A1Weg Equipamentos EléTricos S.A.
- Brush holder and supporting rod device mating together2 Jun 2022US 2022/0173563 A1MERSEN Osterreich Hittisau
- Brush holder assembly5 May 2022US 2022/0140557 A1Cutsforth, Inc.
- Brush holder for electrical contact brushes1 Oct 2020US 2020/0313497 A1AB Dynamoborstfabriken
Most cited
By later US patents
- Brush holder apparatus, brush assembly, and method63US 7,034,430 B2Cutsforth Products, Inc. · 2006
- Brush holding apparatus for rotary electric machine56US 4,296,346 AHitachi Chemical Company, Ltd. · 1981
- Brushholder apparatus for dynamoelectric machine56US 4,329,611 AGeneral Electric Company · 1982
- Brush holder apparatus, brush assembly, and method45US 7,122,935 B2Cutsforth Products, Inc. · 2006
- Brush holder assemblies including brush holders with handles43US 7,365,470 B1Fulmer Company · 2008